busworks section

8/6/2019 Busworks Section

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Tel: 248-295-0880 Fax: 248-624-9234 e-mail: [email protected] www.acromag.com

49

M o d b u s I / O

BusWorks

900MB Series

Modbus-RTU I/O

Introduction

Series overview . . . . . . . . . . . . . . . . . . . . . .Page 50

Discrete I/O Modules

901MB active low inputs . . . . . . . . . . . . . . .Page 54

902MB sinking outputs . . . . . . . . . . . . . . . . . . . .54

903MB active low inputs, sinking outputs . . . . . .54

904MB active high inputs . . . . . . . . . . . . . . . . . . .56

905MB sourcing outputs . . . . . . . . . . . . . . . . . . .56

906MB active high inputs, sourcing outputs . . . .56Analog I/O Modules

913MB DC current input . . . . . . . . . . . . . . .Page 58

914MB DC voltage input . . . . . . . . . . . . . . . . . . .58

917MB DC current output . . . . . . . . . . . . . . . . . .60

918MB DC voltage output . . . . . . . . . . . . . . . . . .60

924MB Thermocouple/millivolt input . . . . . . . . . .62

932/934MB RTD input . . . . . . . . . . . . . . . . . . . . .64

942MB Frequency/counter input . . . . . . . . . . . . .66

Accessories

Software interface package . . . . . . . . . . . . .Page 69

Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . .69Mounting hardware . . . . . . . . . . . . . . . . . . . . . . .69

RS-232/485 signal converter . . . . . . . . . . . . . . . . .70

RS-485 network repeater . . . . . . . . . . . . . . . . . . .70

Technical Documentation

Application notes . . . . . . . . . . . . . . . . . . . . .Page 71

Dimension diagrams . . . . . . . . . . . . . . . . . . . . . . .68

901/2/3 904/5/6 913/914 917/918 924 932/934 942

DISCRETE INPUTS

Active low input x

Active high input x

ANALOG INPUTS

DC voltage/current input x

DC millivolt input x

Thermocouple input x

RTD/resistance input x

Frequency input x

AC current input (requires external sensor) x

DISCRETE OUTPUTS

Sinking output (low-side switch) x

Sourcing output (high-side switch) x

Limit alarm (open-drain MOSFETs or relays) x x x x x

ANALOG OUTPUTS

DC voltage/current x

POWER CONFIGURATION

DC-powered x x x x x x x

AC-powered x x x x x x x

Discrete I/O Modules Analog I/O Modules


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9 0 0 M B S e r i e s

Modbu

sI/O

BusWorks

900MB SeriesModbus-RTU

I/O Modules

The 900MB series is a high-performance line ofmulti-function I/O modules. These units featureuniversal input/output ranges and an intelligentmicrocontroller to provide extreme flexibility andpowerful monitoring and control capabilities.Select from a variety of analog and discrete I/Omodels to meet your application requirements.

To ensure unsurpassed performance, these I/Omodules employ the latest digital technology.State-of-the-art flash microcontrollers plus opti-

cally isolated input, output, power, and networkcircuits increase noise/transient immunity andprevent ground loops. Status LEDs providediagnostic feedback and visually indicate whichchannels are outside their calibrated range.

Sophisticated watchdog timer functions allowthe application to define the module's failsafeoutput state. The watchdog timer invokes thefailsafe condition when communication betweenthe host and module exceed a duration specifiedby the application. For further security, a secondhardware watchdog timer monitors the micro-

controller for failed operations or a lock-upcondition and automatically resets the unit.

I Special Features

I High-speed RS-485 communication allows datatransfers up to 115K baud

I Modbus RTU protocol interfaces to popular

HMI and SCADA software packages

I Wide-range, polarity-insensitive power supplysupports 10-36V DC and 24V AC sources

I Powerful watchdog timers allow user-definedfailsafe state when host communication is lost

I Isolation eliminates potential ground loopsbetween I/O, power, and network circuitry

I Default switch allows user to set module toknown communication parameters

I Menu-based Windows configuration software

simplifies setup and trouble-shooting

I Discrete I/O

These modules monitor discrete levels of variousdevices and/or provide on/off control capabilitiesdepending on the model selected. Each moduleoffers high channel density to save space andkeep costs low. Models are available with twelveinputs, twelve outputs, or twelve bidirectionalI/O channels.

InputsI Active-high inputs, 0 to 35V DCI Active-low inputs, 0 to 35V DC

OutputsI Sourcing outputs, 5.5 to 35V DC, 250mAI Sinking outputs, 0 to 35V DC, up to 1A

FunctionsI Monitor discrete state or levelI On/off controlI Activate audible or visual alarmsI Transmit discrete data to other control systems

I Analog Input

These units monitor DC or thermocouple sensorinputs and provide alarm outputs if conditionsexceed user-defined limits. Each module has four

analog input channels and four discrete outputsfor independent local alarms or host-controlledon/off switching.

InputsI DC currentI DC voltageI DC millivoltsI ThermocoupleI RTD/resistanceI FrequencyI AC current

OutputsI Open drain MOSFETs (1A solid-state switches)

FunctionsI Temperature monitoringI Process variable measurementI Limit alarms with high and/or low setpointsI On/off control

I Analog Output

Analog output modules are ideal for controllinga wide variety of industrial machinery. The hostdefines the output of voltage or current signals

to control speed, flow, temperature, frequency,level, force, torque, intensity, and many otherproperties. Each module has four analog outputchannels plus four discrete outputs for on/offswitching applications.

OutputsI DC voltageI DC currentI Open drain MOSFETs (1A solid-state switches)

FunctionsI Write data to local displays or recorders

I Control drives, valves, and other equipmentI Transmit discrete data to other control systemsI On/off control (alarms)

Modbus I/O Network


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51

M o d b u s I / O

FREQUENCYINPUT

(W/ALARMS)

Frequency/Counter

TTL, dry contact, high/low-sidetransistor switches, magnetic

pickups, proximity sensors

ANALOGINPUT

(W/ALARMS)

ANALOGOUTPUT

(W/ALARMS)

TEMPERATUREINPUT

(W/ALARMS)

901902

903

904

905

906

On/Off Monitoring & Control, High/Low Status & Switching

motors, pumps, heaters, solid-state relays, other discrete devices

Voltage/Current Signal Generation

variable frequency drives, valves, motors, positioners, displays, recorders

Voltage/Current Signal Measurementsensors: flow, level, speed, pressure, etc.

Thermocouple/Millivolt/RTD

sensors: temperature, O2, cathodic monitor, DC shunt

DCS

OI Terminal

PLC

Workstation

RemoteWorkstation

Server

Server

EXECUT

IVENE

TWORK-Busi

nessOp

eration

s

PLANTN

ETWORK

-Moni

toringand

Control

I/ONE

TWORK

-Modbu

s-RTUto

Sensors

andAct

uators(RS-48

5,4000

ft,32de

vices,11

5Kbps)

DISCRETEI/O

HMI SoftwareCitectIconicsIntellutionLabViewWonderware

Modems

Acromag 900MB Series I/O Modules901MB 12 DI (active low) 913MB 4 AI (mADC), 4 DO902MB 12 DO (sinking) 914MB 4AI (VDC), 4 DO903MB 12 DI/DO (as above) 917MB 4 AO (mADC), 4 DO904MB 12 DI (active high) 918MB 4 AO (VDC), 4 DO905MB 12 DO (sourc ing) 924MB 4 TC/mV, 4 DO906MB 12DI/DO (as above) 934MB 4 RTD, 4 DO 942MB 2 Freq, 2 DO

SimplifiedEnterpriseDiagram


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BusWorks

I Software Support

Series 900 I/O modules are compatible withpopular Human-Machine Interface (HMI) softwarepackages that support Modbus communication.

The I/O modules may be configured using genericdrivers provided with the HMI software to accessthe Modbus register maps.

A list of popular third-party HMI softwaremanufacturers:I AB/Rockwell I National InstrumentsI Citect I SteeplechaseI Iconics I Think and DoI Intellution I Wonderware

Acromag also offers a configuration utility forfaster and easier setup. This software provides anintuitive approach to select configuration options

for your application. Familiar Windows pull-downselection menus and fill-in-the-blank fields speedyou through a few brief configuration screens. Noprogramming is required. The utility also helpsyou monitor and verify proper operation of themodule outside the main control software. Thisdiagnostic tool provides a simple alternative tousing Modbus register maps.

I Easy Configuration

Acromags configuration software is designed foroffline setup at a bench or in the field with a lap-top computer. Configuration settings can besaved to a file or printed for archival purposes.Setup is quick and easy using the steps below.

1) Connect the module to a PC with the cableand RS-232/485 converter (typical system).Apply power.

2) In the software, open a saved configuration

or select the Module Upload option.3) Configure the operating parameters as

desired and download the configuration intothe module.

4) Use the softwares Test function to verifymodule operation and communication.

5) Install the module on the network.

Acromags configuration software can be used offline to set up a module and save the configuration to a file.

Limit alarms are easy to configure with fill-in-the-blank fields in engineering units for high/low alarm setpoints.

Module Configuration

AcromagConfiguration Software

for Windows

RS-232/485 Converter and

RS-485/3-wire Cable

900MB Module(all models)


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53

M o d b u s I / O

I Accessories

I Configuration Tools

Acromag provides a full set of tools to help youget your modules set up and ready to install.

Software Interface PackageSee Page 69 for more information.Includes the following:- Configuration Software Utility- Instruction manuals- Serial port converter- Interface cable

I Network Devices

Everything you need to drive your network isavailable from Acromag: i solators, converters,signal boosters, and power sources.

Universal 50W Power Supply (Page 69)

Isolated RS-232/485 Converter (Page 70)

Isolated RS-485 Network Repeater (Page 70)

I Mounting HardwareInstallation is a snap with Acromag accessories.

DIN RAIL Bars (Page 69)

19" Rack-Mount Kit (Page 69)

I General ModuleSpecifications

I Communication Interface

Network Communication

Modbus-RTU protocol, RS485 (3-Wire). StandardProtocol implementation as defined under ModiconModbus Reference Guide PI-MBUS-300 Rev. J.Reference: http://public.modicon.com.Search on: PI-MBUS-300 for technical publication.

Baud Rate2400, 4800, 9600, 14.4k, 19.2k, 28.8k, 38.4k, 57.6k,76.8k, or 115.2k baud. Default 9600 baud.

Module Addressing0 to 247, selectable. Default address 247.

Network Distance4000 feet without network repeater.

NodesSupports up to 32 modules without the use of anetwork repeater.

ParityOdd, even, or none. Default setting none.

Stop BitsOne with parity, one or two with no parity.Default setting is two s top bits with no parity.

Watchdog Timer (Hardware)A hardware watchdog timer is built into each moduleto perform a reset if the microcontroller fails to returnfrom an operation in a timely manner or "locks up".

Watchdog Timer (Network Communication)All modules have a communication watchdog timerfunction. The watchdog timer is configurable fortimeout periods of up to 18 hours. This timerfunction monitors I/O communications with the hostcontroller. In the event of lost communications, output

ports optionally reset to a user-defined state or level.The watchdog timer restarts with a read/write to anI/O channel.

I Environmental

Ambient TemperatureOperation: -25C to +70C (-13F to +158F).Storage: -40C to +85C (-40F to +185F).

Relative Humidity5 to 95% non-condensing.

Radiated Field Interference Immunity (RFI)Complies with EN61000-4-3 Level 2 and EN50082-1(3V/M, 80 to 1000MHz AM and 900MHz keyed).

Electrical Fast Transient Immunity (EFT)EN61000-4-4 Level 1 and EN50082-1(0.5KV power, signal lines).

Electrostatic Discharge (ESD) ImmunityEN61000-4-2 Level 3 and EN50082-1(8KV/4KV air/direct discharge).

Surge ImmunityEN61000-4-5 (0.5KV) and EN50082-1.

Radiated EmissionsMeets EN50081-1 for Class B equipment.

ApprovalsCE marked. UL listed for US and Canada.Class I; Division 2; Groups A, B, C, D.

I Enclosure/Physical

EnclosureSelf-extinguishing NYLON type 6.6 polyamide thermo-plastic UL94 V-2, color beige; general purpose NEMAType 1 enclosure.

Connectors (Removable Terminal Blocks)Wire Range: AWG #12-24, stranded or solid copper.

Dimensions1.05W x 4.68H x 4.35D inches26.7W x 118.9H x 110.5D mm.

DIN Rail MountingDIN rail mount, Type EN50022; "T" rail (35mm).

Shipping Weight1 pound (0.45 Kg) packed.


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901/902/903MBMulti-Channel

Discrete I/OModules

Active-Low InputsSinking Outputs(Low-Side Switching)

Models901MB: 12 input channels902MB: 12 output channels903MB: 12 input/output channels

InputTwelve input channels (901, 903 models only)0 to 35V DC

OutputTwelve output channels (902, 903 models only)O to 35V DC

Network CommunicationModbus-RTU high-speed RS-485

Power Requirement10 to 36V DC,

24V AC

ApprovalsCE marked. UL, cUL listedClass I; Division 2; Groups A, B, C, D.

I Description

These modules provide twelve discrete inputand/or output channels. Isolation separates theI/O, power, and network circuits. Networkcommunication adheres to the industry-standardRS-485 Modbus RTU protocol. Both AC and DCpower sources are supported with wide range,nonpolarized, diode-coupled terminals.

The open-drain outputs are intended for current-sinking or low-side switching applications. The

buffered inputs are active-low. These models arethe complement of the 904, 905, and 906 unitswhich have open-source, high-side outputswitches and active-high inputs. Socketed pull-upresistors are easily removed or exchanged to sat-isfy your application requirements.

The 903MB model has twelve input/outputpoints that may be used as inputs or outputs ona bit-by-bit basis. Outputs may be read back toverify output settings.

Combining flexible I/O types, wide I/O ranges,and a network interface in a single package,

makes this instrument extremely powerful.Multi-channel design adds cost-efficiency andallows high-density mounting. Plus, safe, ruggedconstruction makes these modules reliable foruse in both control room and distributed field I/Oapplications. Custom module configurations arealso possible (consult factory for details).

I Special Features

I Standard Modbus RTU protocol with high-speedRS-485 communication (up to 115K bps)

I Twelve I/O channels in a single inch-wide unitreduces system costs and saves panel space

I High-voltage, high-current, open-drain outputsenable direct (low-side) control of externaldevices

I High-voltage buffered inputs monitor discrete

levels from a variety of industrial devices

I Tandem input/output circuitry (903 modelsonly) connects input buffers with open-drainoutputs for convenient loopback monitoring ofthe output state

I Outputs have built-in over-temperature andover-current shut-down protection, plus activeclamping circuits for switching inductive loads

I Watchdog timers provide a configurablefailsafe output state for use when hostI/O communication is lost

I Three-way isolation eliminates potentialground loops between power, I/O, andnetwork circuitry

I Self-diagnostics monitor microcontroller activityto detect operational failures (lock-up) andexecute a reset to restore communication

ModbusRS-485

10-36V DCor 24V AC

Isolation

TwelveDiscreteInputs or Outputs

Power

Inputs (4)

or

Outputs (4)

Inputs (4)

or

Outputs (4)

Inputs (4)

or

Outputs (4)

High-Density Discrete I/O ModuleModbus/RS-485


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M o d b u s I / O

I Performance

I Discrete Inputs(901 & 903 models only)

Input Type

12 active-low, buffered inputs, with a common con-nection. Inputs include transient suppression devicesand series connected 100K ohm resistors, plus diodeover-voltage clamps to the internal +5V supply.

Input Signal Voltage Range0 to 35V DC, maximum.

Input Current293A, typical at 35V DC.

Input Signal ThresholdTTL compatible with 100mV of hysteresis, typical.Low-to-High threshold is 1.7VDC, High-to-Low is1.6VDC, typical. Limited to TTL levels of 0.8VDC(max. LOW level) and 2.0VDC (min. HIGH level).

Input Resistance100K ohms, typical.

Input Hysteresis100mV DC, typical.

I Discrete Outputs(902 & 903 models only)

Output Type12 independent, open-drain, DMOS MOSFET switcheswith a common source connection that operate aslow-side switches.

Output Voltage Range0 to 35V DC max. (0 to 500mA/channel continuous).External voltage source required.

Output ON Resistance0.28 ohms maximum.

Output Response TimeForce Single Coil: Output updates within 250s ofreceipt of a command.

Force Multiple Coils: First coil updates in 250s,followed successively by additional coils every 180s.

I General

I/O Pull-ups and Socket5.6K ohm pull-up resistor SIPs are installed in socketsat each port (four-channels per port).

Excitation (per port)External excitation voltage for each four-channel portis limited to 35V or less.

Supported Modbus CommandsThe command/response protocol for communicatingwith this module adheres to the Modbus/RTU standardfor the following Modbus Functions.

Read Coil (Output) StatusRead Input StatusRead Holding RegistersForce Single Coil (Output)Preset Single RegisterReset SlaveForce Multiple Coils (Outputs)Preset Multiple Registers

Report Slave IDLED IndicatorsLEDs indicate power, status, and discrete level.

Power Requirements10 to 36V DC,22 to 26V AC.

Supply Current

Supply Current Draw10V DC 80mA maximum24V DC 40mA maximum24V AC 70mA rms maximum

Isolation1500V AC for 60 seconds or 250V AC continuous.

3-way isolation between I/O, network, and powercircuits.

I OrderingInformation

Models901MB-0900

Discrete input module902MB-0900Discrete output module

903MB-0900Discrete input/output module

Accessories900C-SIPConfiguration Software Interface Package(includes software CD-ROM for Windows, RS-232/485converter, and RS-485/three-wire cable)

5034-225USB-to-RS232 adapter. See page 68 for more info.

TBK-B02

Optional terminal block kit, barrier strip style, 4 pcs.TBK-S02Optional terminal block kit, spring clamp style, 4 pcs.

PS5R-D24Power supply (24V DC, 2.1A).See Power Supplies on Page 199.

For more information on software, network hardware,and mounting accessories, please see Pages 69-71.

DIGITAL INPUT CONNECTIONS (ACTIVE LOW) DIGITAL OUTPUT CONNECTIONS

RTN

+5V

INP

INP

RTN

CH 0

RTN

CH 1

CH 2

CH 3

5V TTL LOGIC - INPUT CAN BE PULLEDUP INTERNALLY OR EXTERNALLY

DIGITAL I/O

SHARES

RETURN

EXC1

TB1

INTERNAL INPUT

PULL-UPS ARE PRESENT

DIGITALIN

orOUT

CH11

RTN464544CH10

RS485

41

42

43

EXC3

TB4

CH 8

CH 9

35

36

COM

COM

TB1DIGITALIN

orOUT

12

11

CH 0

EXC1

CH 1131415

CH 2

CH 3

RTN16

DIGITALINorOUT

TB221

EXC2

CH 4

22

24

23

CH 6

CH 5

RTN

CH 7

2526

3433D

D

31

32

TB3

PWR

DIGITAL

I/O

10 TO 36V DC

OR 24V AC

NON-POLARIZED

DIGITAL

I/O

DIGITAL

I/O AC/DC

POWER

NETWORK

COMMUNICATION

903MB shown.

901MB & 902MB

are similar.

A

B

TB3

TB2

TB4

TB1

CH 0

RTN

CH 1

CH 2

CH 3

EXC1

TB1

OUT

RTN

DIGITAL I/O

SHARES

RETURN

EXC

DUP

SPST

RELAY

12-24V DC,

TYPICAL

+

RTN

EXC

RTN

INP

5-35V

V

RTN

I/O

902MB/903MBON

TO OTHER 3

CHAN OF PORT100K

OFF

EXC903MB

+5V

LOAD

Optional terminal blocks: barrier strip (left) andspring clamp (right). Cage clamp terminal is standard.


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904/905/906MBMulti-Channel

Discrete I/OModules

Active-High InputsSourcing Outputs(High-Side Switching)

Models904MB: 12 input channels905MB: 12 output channels906MB: 12 input/output channels

InputTwelve input channels (904, 906 models only)0 to 35V DC

OutputTwelve output channels (905, 906 models only)5.5 to 35V DC


Power Requirement10 to 36V DC,

24V AC


I Description

These modules provide twelve discrete inputand/or output channels. Isolation separatesthe I/O, power, and network circuits. Networkcommunication adheres to the industry-standardRS-485 Modbus RTU protocol. Both AC and DCpower sources are supported with wide range,nonpolarized, diode-coupled terminals.

The outputs are intended for current-sourcing orhigh-side switching applications. The buffered

inputs are active-high. These models are thecomplement of the 901, 902, and 903 unitswhich have low-side output switches andactive-low inputs. Socketed pull-down resistorsare easily removed or exchanged to satisfy yourapplication requirements.

The 906MB model has twelve input/outputpoints that may be used as inputs or outputs ona bit-by-bit basis. Outputs may be read back toverify output settings.

Combining flexible I/O types, wide I/O ranges,and a network interface in a single package,

makes this instrument extremely powerful.Multi-channel design adds cost-efficiency andallows high-density mounting. Plus, safe, ruggedconstruction makes these modules reliable foruse in both control room and distributed field I/Oapplications. Custom module configurations arealso possible (consult factory for details).

I Special Features


I Twelve I/O channels in a single inch-wide unitreduces system costs and saves panel space

I High-voltage, high-current, open-sourceoutputs enable direct (high-side) control ofexternal devices

I High-voltage buffered inputs monitor discrete

levels from a variety of industrial devices

I Tandem input/output circuitry (906 modelsonly) connects input buffers with open-sourceoutputs for convenient loopback monitoring ofthe output state


I Three-way isolation eliminates potentialground loops between power, I/O, andnetwork circuitry


ModbusRS-485

10-36V DCor 24V AC

Isolation

TwelveDiscreteInputs or Outputs

Power

Inputs (4)

or

Outputs (4)

Inputs (4)

or

Outputs (4)

Inputs (4)

or

Outputs (4)

High-Density Discrete I/O ModuleModbus/RS-485


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57

M o d b u s I / O

I Performance

I Discrete Inputs(904 & 906 models only)

Input Type

12 active-high, buffered inputs, with a common con-nection. Inputs include transient suppression devicesand series connected 100K ohm resistors, plus diodeover-voltage clamps to the internal +5V supply.

Input Signal Voltage Range0 to 35V DC, maximum.

Input Current293A, typical at 35V DC.

Input Signal ThresholdTTL compatible with 100mV of hysteresis, typical.Thus, Low-to-High threshold is 1.5VDC, High-to-Low is1.4VDC, typical. Limited to TTL levels of 0.8VDC(max. LOW level) and 2.0VDC (min. HIGH level).

Input Resistance5.6K ohms with s tandard factory pull-down resistorsinstalled. 100K ohms without pull-downs.

Input Hysteresis100mV DC, typical.

Input Response Time500ns for low-to-high, 2S for high-to-low, typical.Microcontroller samples inputs as a group every 10mS.

I Discrete Outputs(905 & 906 models only)

Output Type12 independent, open-source, MOSFET switches thatoperate as high-side switches.

Output Voltage Range5.5 to 35V DC (0 to 250mA/channel continuous).External excitation voltage required.


Output Response TimeOutputs update within 50ms of a write command andswitch within 5mS of receipt of command. Loopbackresponse (906MB) is 1S low-to high, 5S high-to-low.

I General

I/O Pull-downs and Socket5.6K ohm pull-down resistor SIPs are installed insockets at each port (four-channels per port).

Excitation (per port)External excitation voltage for each four-channel portis limited to 35V or less.


Read Coil (Output) StatusRead Input StatusRead Holding RegistersRead Input RegistersForce Single Coil (Output)Preset Single RegisterReset SlaveForce Multiple Coils (Outputs)Preset Multiple RegistersReport Slave ID

LED IndicatorsLEDs indicate power, status, and discrete level.


Supply Current

Supply Current Draw

10V DC 90mA maximum24V DC 40mA maximum24V AC 75mA rms maximum

Isolation1500V AC for 60 seconds or 250V AC continuous.3-way isolation between I/O, network, and powercircuits.


Models904MB-0900

Discrete input module905MB-0900Discrete output module

906MB-0900Discrete input/output module



TBK-B02




DIGITAL INPUT CONNECTIONS (ACTIVE HIGH)

DIGITALIN

orOUT

45

46

TB4

CH11

COM

TB4

CH 9

CH10

CH 8

444342

36

41

TB3

EXC3

10 TO 36V DC

OR 24V AC

NON-POLARIZED

D

COM

COM

D

RS485

33

34

35

31

32

A

BPWR

TB3

TB1

DIGITAL

I/O

DIGITAL

I/O

DIGITALI/O

TB2

AC/DCPOWER

NETWORKCOMMUNICATION

TB1

EXC1

CH 0

12

11

DIGITALIN

orOUT

13

CH 1

CH 2

CH 3

141516 RTN

TB2

EXC2

CH 4

22

21

DIGITALINorOUT

23

CH 5

CH 6

CH 7

242526 RTN

906MB shown.

904MB & 905MB

are similar.

INP

COM

INP

RTN

+5V

COM

INP

TB1

RTN

CH 3

CH 2

CH 1

CH 0

EXC1

DIGITAL I/OSHARESCOMMON

INTERNAL INPUT PULL-DOWNSARE PRESENT

5V TTL LOGIC INPUT IS ACTIVE HIGHAND PULLED DOWN INTERNALLY

DIGITAL OUTPUT CONNECTIONS

CH 0

RTN

CH 1

CH 2

CH 3

EXC1

TB1

OUT

RTN

DIGITAL I/O

SHARES

RETURN

UP TO

35V DC

SPST

RELAY

+

RELAY COIL/SOLENOID DRIVER (905MB/906MB)

LocateSnubberat Coil

5-35VTypical

ON (1)

EXC

I/O

RTN

905MB

OFF (0)

R

TO OTHER 3

CHAN OF PORT

CHLED OPEN

INTERNAL PULL-

DOWN IS OPEN

FOR 905MB

+



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913/914MBMulti-Channel

Analog InputModules

DC Current,DC Voltage orAC Current Input

Limit Alarms orDiscrete Outputs

Models913MB: 4 current input channels914MB: 4 voltage input channels

Input Ranges0 to 20mA DC,10V DC,0 to 20A AC (with 5020-350 sensor)

OutputFour output channels:Open-drain MOSFETs (1A DC loads)0 to 35V DC


Power Requirement10 to 36V DC,24V AC


I Description

This signal conditioner is a four-channel analoginput module with four discrete outputs. Itprovides isolation between input, output, power,and network circuits. Network communicationadheres to the industry-standard RS-485 ModbusRTU protocol. AC and DC power sources aresupported with nonpolarized, diode-coupledterminals.

The inputs accommodate wide DC voltage or

current ranges. Flexible discrete outputs operateas alarms or on/off controllers. As limit alarms,each discrete output can be configured with highand/or low setpoints exclusively tied to an analoginput channel. Alarm trips function without hostcommunication enabling low-cost stand-alonealarms, as well as local backup for the primarycontrol system. Otherwise, on/off control isbased on commands issued by the host system.

Combining flexible transmitter functions, mixedsignal I/O, alarm support, and a network inter-face in a single package, makes this instrument

extremely powerful. Multi-channel design addscost-efficiency and allows high-density mounting.Plus, safe, rugged construction makes thesemodules reliable for use in both control roomand distributed field I/O applications. Custommodule configurations are also possible (consultfactory for details).

I Special Features


I 16-bit sigma-delta A/D yields 0.1% of rangeresolution and accuracy

I Four inputs in a single inch-wide modulereduces system costs and saves panel space

I Four discrete outputs enable local limit alarmsor host-controlled on/off switching

I Heavy-duty 1A solid-state relays providedependable on/off control of industrial devices

I Self-calibration lowers maintenance costs byreducing periodic manual calibration checks


I Four-way isolation eliminates potential groundloops between power, input, output, andnetwork circuitry


Modbus

FourDC Current

orDC Voltage

Inputs RS-485

10-36V DCor 24V AC

Isolation

Four

DiscreteOutputsor

Limit Alarms

Power

Outputs (4)Inputs (2)

Inputs (2)

DC Current/Voltage Input Module

TB1/TB2

IN+

IN-

Red

Black

1.35"

1.05"

0.375"dia.

5020-350

AC Current Sensor Model 5020-350

For 913MB. Order separately (one per channel).

Modbus/RS-485


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I Performance

I General Input

Resolution0.005% or 1 part in 20,000.

Noise RejectionNormal mode: 40dB @ 60Hz, typical.Common mode: 140dB @ 60Hz, typical.

Input Filter Bandwidth-3dB at 3Hz, typical.

Input Conversion Rate180ms per channel.

I Current Input (913MB)

DC Current Input RangesRange user-configured. Range selected applies to allchannels.

0 to 1mA, 0 to 20mA, 4 to 20mA,

0 to 11.17mA (for use with 5020-350 AC sensor).DC Current Input Resistance49.9 ohms.

DC Current Input Accuracy0.1% of input range.

I Voltage Input (914MB)

DC Voltage Input RangesRange user-configured. Range selected applies to allchannels.

10V, 5V, 2.5V, 1.25V,625mV, 313mV, 156mV, 78mV

Input Impedance

110.5K ohms.DC Voltage Input Accuracy0.1% of input range.

I Discrete Output

Output TypeFour independent open drain MOSFET switches with acommon return that operate as low-side switches.

Output Voltage Range0 to 35V DC.External voltage source required.

Output Current Range0 to 1A DC continuous for each output.

Output OFF Leakage Current50A maximum.


Output Response Time4.1ms typical, from receipt of command to gatetransition of the output MOSFET.

Operation

Digital outputs are set to their OFF state following asoftware or power-on reset. Outputs can optionally beset to user-defined states following a watchdog time-out. Watchdog timeout output control takes prece-dence over limit alarm control. Alarm control takesprecedence over host control.

I Communication


Read Coil (Output) StatusRead Holding RegistersRead Input Registers

Force Single Coil (Output)Preset Single RegisterForce Multiple Coils (Output)Preset Multiple RegistersReport Slave IDReset Slave

LED IndicatorsLEDs indicate power, status, and discrete level/alarm.

I Power and Isolation

Power Requirements10 to 36V DC or 22 to 26V AC.

Supply Current


Isolation1500V AC for 60 seconds or 250V AC continuous.4-way isolation between input, network, power, anddiscrete I/O circuits. Inputs are isolated channel-to-channel for common mode voltage to 4V DC.


Models913MB-0900914MB-0900DC current (913MB) or voltage ( 914MB) input module



5020-350AC current sensor for 913MB. One for each channel.(See page 205)

TBK-B02




TWO-WIRE TRANSMITTER

ANALOG INPUT

CONNECTIONS

TB1/TB2

IN+

DCCURENT

(mA)

IN-

-

+TB1/TB2

IN+

IN-

DIGITALOUTPUTS

45

46

TB4

OUT3

RTN

DIGITAL OUTPUT

TB4

RTN

OUT2

OUT1

444342

36

41

TB3

OUT0

11

TB1

1213 IN0+

IN0-141516

IN1+

IN1-

INPUTS0,1

TB221

IN3+

IN3-

2526

24 IN2-

23 IN2+

22

INPUTS2,3

D

COM

COM

D

RS485

33

34

35

31

32

A

BPWR

TB3

TB1

ANALOGINPUT

ANALOGINPUT

TB2

AC/DCPOWER


CURRENT INPUT

VOLTAGE

SOURCE -

+ TB1/TB2

IN+

IN-

VOLTAGE INPUT

XMTR2-WIRE

-

+


UP TO

35V DC

MECHANICAL

RELAY INTERFACE

+

OUT 3

OUT

OUT 2

RTN

OUT 1

RTN

TB4

OUT

RTN

DIGITAL OUT

SHARES

RETURN

RTN

OUT

10 TO 36V DC

OR 24V ACNON-POLARIZED


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Analog OutputModules

DC Current orDC Voltage Outputs

Discrete Outputs

Models917MB: 4 current output channels918MB: 4 voltage output channels

Analog Output917MB: 0 to 20mA, 4 to 20mA, 0 to 1mA DC918MB: 0 to 10V, 0 to 5V, 0 to 1V DC

Discrete OutputFour output channels:Open-drain MOSFETs (1A DC loads)0 to 35V DC


Power Requirement12 to 36V DC (917MB), 10 to 36V DC (918MB),24V AC


I Description

These modules drive four analog output channelsand also feature four discrete outputs for on/offcontrol. Isolation separates the output, power,and network circuits. Network communicationadheres to the industry-standard RS-485 ModbusRTU protocol. AC and DC power sources aresupported with nonpolarized, diode-coupledterminals.

The analog outputs generate a signal based on

communication from the host. They accommo-date wide DC voltage or current ranges.

Discrete outputs provide simple on/off switchingcapability (open-drain) for external devices.

Combining analog outputs, on/off controllers,and a network interface in a single package,makes this instrument extremely powerful.Multi-channel design adds cost-efficiency andallows high-density mounting. Plus, safe, ruggedconstruction make it reliable for both controlroom and distributed field I/O use in a broadrange of temperature control applications.

Custom module configurations are also possible(consult factory for details).

I Special Features


I 12-bit D/A yields 0.1% of span resolution andaccuracy

I Four analog outputs in an inch-wide modulereduces system costs and saves panel space

I Four discrete outputs enable host-controlledon/off switching




I Three-way isolation eliminates potentialground loops between power, output, andnetwork circuitry


Modbus

FourAnalogOutputs

DC Current

orDC Voltage

RS-485

10-36V DCor 24V AC

Isolation

FourDiscreteOutputs

Power

Outputs (4)Outputs (2)

Outputs (2)

Analog Output ModuleModbus/RS-485


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I Performance

I General Analog Output

ResolutionSee current/voltage output specifications for more

information.Ambient Temperature EffectBetter than 0.001% of output span per C, or1.0uV/C, whichever is greater.

Ambient TemperatureOperation (917MB): -25C to 60C* (-13F to 140F*).Operation (918MB): -25C to 70C (-13F to 158F).Storage: -40C to +85C (-40F to +185F).

* Limit 917MB maximum ambient to 50C (122F)when using supply voltages less than 15V DC.

I Current Output (917MB)

DC Current Output RangesRange user-configured. Range selected applies to all

channels.Output Range Resolut ion Accuracy (% span)0 to 1mA 0.554% 2.0% (0.002mA)0 to 20mA 0.028% 0.1% (0.02mA)4 to 20mA 0.035% 0.1% (0.02mA)

Maximum Output Current22.5mA DC typical.

Integral Non-Linearity0.1% of span or 2 LSB typical, whichever is larger,for spans equal to or greater than 16mA.

Output Compliance12V minimum, 12.7V typical.

Output Load Resistance Range0 to 630 ohms typical.

Response Time11ms typical into 500 ohms, for measurement toreach 98% of the final value in response to a stepcommand. Actual response time will vary with load.

I Voltage Output (918MB)

DC Voltage Output RangesRange user-configured. Selection applies to all channels.

Output Range Resolut ion Accuracy (% span)0 to 1V 0.274% 0.6% (6mV)

0 to 5V 0.055% 0.1% (5mV)0 to 10V 0.027% 0.1% (10mV)

Maximum Output Voltage11.255V DC typical.

Integral Non-Linearity0.1% of span or 2 LSB typical, whichever is larger,for spans equal to or greater than 5V.

Output Current0 to 10mA DC maximum.

Output Impedance1 ohm.

Output Short Circuit Protection

Included.Response Time110s rise time typical, 150s fall time typical,unloaded, for output to reach 98% of the final valuein response to a step command. Time varies with load.

I Discrete Output


Output Voltage Range0 to 35V DC (up to 1A/channel continuous).External voltage source required.


OperationDigital outputs are set to their OFF state following asoftware or power-on reset. Outputs may be set touser-defined states following a watchdog timeout.Watchdog timeout output control takes precedenceover limit alarm control. Alarm control takes prece-dence over host control.


I Communication


Read Coi l (Output) Status Report Slave IDRead Holding Registers Reset SlaveRead Input RegistersForce Single Coil (Output)Preset Single RegisterForce Multiple Coils (Output)Preset Multiple Registers



Power Requirements10 to 36V DC (918MB), 12 to 36V DC (917MB)22 to 26V AC.

Supply Current

Supply Current Draw (917) Current Draw (918)10V DC Not Recommended 100mA maximum12V DC 275mA maximum 85mA maximum24V DC 120mA maximum 45mA maximum24V AC 210mA rms max. 85mA rms max.

Isolation1500V AC for 60 seconds or 250V AC continuous.3-way isolation between outputs, network, and powercircuits.


Models917MB-0900918MB-0900DC current (917MB) or voltage (918MB) output module


5034-225

USB-to-RS232 adapter. See page 68 for more info.TBK-B02Optional terminal block kit, barrier strip style, 4 pcs.

TBK-S02Optional terminal block kit, spring clamp style, 4 pcs.



DC CURRENT OUTPUT

ANALOG OUTPUT

CONNECTIONS DIGITALOUTPUTS

45

46

TB4

OUT3

RTN

DIGITAL OUTPUT

TB4

RTN

OUT2

OUT1

444342

36

41

TB3

OUT0

D

COM

COM

D

RS485

33

34

35

31

32

A

BPWR

TB3

TB1

ANALOGOUTPUT

ANALOGOUTPUT

TB2

AC/DCPOWER


DC VOLTAGE OUTPUT

TB1

I0+

RTN

12

11

ANALOGOUTP

UTS

13

RTN

I1+

RTN

1415

ANALOGOUTPUTS

16 RTN

TB22122

I2+

RTN

I3+

RTN

2324

RTN26

25 RTN

TB1

V0+

RTN

12

11

ANALOGOUTP

UTS

13

RTN

V1+

RTN

1415

ANALOGOUTPUTS

16 RTN

TB22122

V2+

RTN

V3+

RTN

2324

RTN26

25 RTN

TB1/TB2

+LR

I

TB1/TB2

+LR

WIRING CONNECTIONS

SAME AS 913/914MB

10 TO 36V DC

OR 24V ACNON-POLARIZED

I+

RTN

V+

RTN


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924MBMulti-Channel

TemperatureControl Modules

Thermocouple orMillivolt Input


Model924MB: 4 input channels

InputFour input channels:Thermocouple (types J, K, T, R, S, E, B, N),100mV DC

OutputFour output channels:Open-drain MOSFETs (1A DC loads)0 to 35V DC




I Description

This signal conditioner is a four-channel analoginput module with four discrete outputs. It filtersand linearizes thermocouple inputs while provid-ing isolation between input, output, power, andnetwork circuits. Cold junction compensationand upscale/downscale sensor break detectionare standard. AC and DC power sources are sup-ported with nonpolarized, diode-coupled termi-nals.

The programmable inputs accommodate eightthermocouple types plus wide-range millivoltsignals. Flexible discrete outputs operate asalarms or on/off controllers. As limit alarms, eachdiscrete output can be configured with highand/or low setpoints exclusively tied to an analoginput channel. Alarm trips function without hostcommunication enabling low-cost stand-alonealarms as well as local backup for the primarycontrol system. Otherwise, on/off control isbased on commands issued by the host system.

Combining flexible transmitter functions, mixed

signal I/O, alarm support, and a network inter-face in a single package, makes this instrumentextremely powerful. Multi-channel design addscost-efficiency and allows high-density mounting.Plus, safe, rugged construction makes thesemodules reliable for use in both control roomand distributed field I/O applications. Custommodule configurations are also possible (consultfactory for details).

I Special Features


I 16-bit sigma-delta A/D yields 0.1C resolutionand 0.5C measurement accuracy

I Thermocouple linearization and sensor breakdetection ensure reliable measurements

I Four discrete outputs enable local temperaturelimit alarms or host-controlled on/off switching




I Four-way isolation eliminates potential groundloops between power, input, output andnetwork circuitry


Modbus

FourThermocouple

orDC Millivolt

Inputs RS-485

10-36V DCor 24V AC

Isolation

Four

DiscreteOutputsor

Limit Alarms

Power


Inputs (2)

Thermocouple/Millivolt Input ModuleModbus/RS-485


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I Performance

I General Input

Resolution100mV DC input: 0.1%.

Thermocouple input: 0.1C (0.18F).Ambient Temperature EffectBetter than 0.005% of input span per C, or1.0uV/C, whichever is greater.



Input Conversion Rate90ms per channel.

I Thermocouple Input

Thermocouple Input RangesThermocouple type user-configured. Type selectedapplies to all channels. Signal linearization, cold-junc-tion compensation, and open circuit or lead breakdetection are included.

TC C Range (F Range) AccuracyJ -210 to 760C (-346 to 1400F) 0.5CK -200 to 1372C (-328 to 2502F) 0.5CT -260 to 400C (-436 to 752F) 0.5CR -50 to 1768C (-58 to 3214F) 1.0CS -50 to 1768C (-58 to 3214F) 1.0CE -200 to 1000C (-328 to 1832F) 0.5CB 260 to 1820C (500 to 3308F) 1.0CN -230 to 1300C (-382 to 2372F) 1.0C

Note 1: Accuracy is given with CJC switched off.Relative inaccuracy with CJC enabled may increaseby 0.5C.

Thermocouple Break DetectionTC sensor failure can be configured for either upscaleor downscale. Selection applies to all channels.

I DC Millivolt Input

Millivolt Input Ranges100mV DC.

Millivolt Input Accuracy0.1% of input range.

I Discrete Output


Output Voltage Range0 to 35V DC, 1A DC maximum for each output.External voltage source required.


OperationDigital outputs are set to their OFF state following asoftware or power-on reset. Outputs can optionally

be set to user-defined states following a watchdogtimeout. Watchdog timeout output control takesprecedence over limit alarm control. Alarm controltakes precedence over host control.


I Communication


Read Coil

Read Holding RegistersRead Input RegistersForce Single CoilPreset Single RegisterForce Multiple CoilsPreset Multiple RegistersReport Slave IDReset Slave




Supply Current


Isolation1500V AC for 60 seconds or 250V AC continuous.4-way isolation between input, network, power anddiscrete I/O circuits. Inputs are isolated channel-to-channel for common mode voltage to 5V DC.

I Ordering

Information

924MB-0900Thermocouple/millivolt input module

900C-SIPConfiguration Software Interface Package(includes software CD-ROM for Windows, RS-232/485converter, and RS-485/three-wire cable)


TBK-B01Optional terminal block kit, barrier strip style, 2 pcs.(Does not include terminal block for input wiring.)

TBK-S02

Optional terminal block kit, spring clamp style, 2 pcs.(Does not include terminal block for input wiring.)



TC INPUT

ANALOG INPUT

CONNECTIONS

TB1/TB2

IN+

VOLTAGE

IN-

SOURCE -

+ TB1/TB2

IN+

IN-

DIGITALOUTPUTS

45

46

TB4

OUT3

RTN

DIGITAL OUTPUT

TB4

RTN

OUT2

OUT1

444342

36

41

TB3

OUT0

11

TB1

12

CJC-0

13 IN0+

IN0-141516

IN1+

IN1-

INPUTS0,1

CJC-1

TB221

IN3+

IN3-

2526

24 IN2-

23 IN2+

22

INPUTS2,3

D

COM

COM

D

RS485

33

34

35

31

32

A

BPWR

TB3

TB1

ANALOGINPUT

ANALOGINPUT

TB2

AC/DCPOWER


VOLTAGE INPUT


OUT 3

OUT 0

OUT 2

RTN

OUT 1

RTN

TB4

OUT

RTN

DIGITAL OUTSHARES

RETURN

10 TO 36V DC

OR 24V AC

NON-POLARIZED

UP TO

35V DC

MECHANICAL

RELAY INTERFACE

+

RTN

OUT


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TemperatureControl Modules

RTD or ResistanceInput


Models932MB: 2 input channels, 2 relay outputs934MB: 4 input channels, 4 relay outputs

InputRTD (100 ohm Pt, 120 ohm Ni, 10 ohm Cu),Resistance (0 to 500 ohms)

OutputSolid-state relays, Form A, SPST-NO


Power Requirement

10 to 36V DC,24V AC


I Description

This signal conditioner is a dual or quad-channelanalog input module with one discrete/relay out-put per input channel and a Modbus interface. Itfilters and linearizes RTD or resistance inputswhile providing isolation between input, output,power, and network circuits. Lead wire compen-sation and upscale/downscale sensor breakdetection are standard. Low voltage AC and DCpower sources are supported with nonpolarized,diode-coupled terminals.

The programmable inputs accommodate fourRTD types plus wide-range resistance signals.Flexible discrete outputs operate as alarms oron/off controllers. As limit alarms, each discreteoutput can be configured with high and/or lowsetpoints exclusively tied to an analog inputchannel. Alarm trips function without host com-munication enabling low-cost stand-alone alarmsas well as local backup for the primary controlsystem. Otherwise, on/off control is based oncommands issued by the host system.

Combining flexible transmitter functions, mixedsignal I/O, alarm support, and a network inter-face in a single package, makes this instrumentextremely powerful. Multi-channel design addscost-efficiency and allows high-density mounting.Plus, safe, rugged construction makes thesemodules reliable for use in both control roomand distributed field I/O applications. Custommodule configurations are also possible (consultfactory for details).

I Special Features


I 16-bit sigma-delta A/D yields 0.1C resolutionand 0.25C accuracy (Pt, Ni RTDs)

I RTD linearization and sensor break detectionensure reliable measurements

I Discrete relay outputs enable local temperaturelimit alarms or host-controlled on/off switching




I Four-way isolation eliminates potential groundloops between power, input, output andnetwork circuitry


Modbus

FourRTD

orResistance

Inputs RS-485

10-36V DCor 24V AC

Isolation

Four

DiscreteOutputsor

Limit Alarms

Power


Inputs (2)

RTD/Resistance Input ModuleModbus/RS-485


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I Performance

I RTD/Resistance Input

Input RangesInput type user-configured. Type selected applies to all

channels. RTD linearization, lead wire compensation,and open circuit or lead break detection are included.

Input Type Alpha Input Range AccuracyPt 100 ohm 1.3850 -200 to 850C 0.25CPt 100 ohm 1.3911 -200 to 850C 0.25CNi 120 ohm 1.6720 -80 to 320C 0.25CCu 10 ohm 1.4272 -200 to 260C 1.00CResistance linear 0 to 500 ohms 0.05 ohm

ResolutionInput Type Alpha ResolutionPt 100 ohm 1.3850 0.1CPt 100 ohm 1.3911 0.1CNi 120 ohm 1.6720 0.1CCu 10 ohm 1.4272 0.2CResistance linear 7.8125 milliohms

Ambient Temperature EffectBetter than 0.005% of input span per C, or1.0uV/C, whichever is greater.



Input Conversion Rate300ms per channel typical.

RTD Break DetectionSensor failure can be configured for either upscale or

downscale. Selection applies to all channels.

Excitation Current1mA DC typical, all types.

Lead-Wire CompensationInherent for 3-wire RTD. The maximum lead resistanceis 25 ohms per lead (Pt), 20 ohms per lead (Ni), 10ohms per lead (Cu). All lead wires must be of equalsize and length.

I Discrete OutputOutput TypeSolid-State Relay (SSR), one Form A (SPST-NO) switchper input channel. Outputs share a common returnconnection at the RTN terminals for low side switching

Output Voltage Range0 to 48V DC, 1A DC.



OperationDigital outputs are set to their OFF state following asoftware or power-on reset. Outputs can be set touser-defined states following a watchdog timeout.

I Communication


Read Holding Registers Read CoilRead Input Registers Reset SlavePreset Single Register Report Slave IDForce Multiple Coils Force Single CoilPreset Multiple Register



Power Requirements10 to 36V DC (56mA max. at 24V DC).22 to 26V AC (94mA rms max. at 24V AC).



932MB-0900Two channel RTD/Resistance input module

934MB-0900Four channel RTD/Resistance input module


5034-225

USB-to-RS232 adapter. See page 68 for more info.TBK-B02Optional terminal block kit, barrier strip style, 4 pcs.




ANALOG INPUT

CONNECTIONS

DIGITAL OUTPUT

TB

4

TB3

TB

1

ANALOGINPUT

ANALOGINPUT

TB2

AC/DCPOWER



RTN

OUT 0

OUT 2

OUT 1

RTN

OUT 3

TB4

OUT

RTN

DIGITAL OUT

SHARES

RETURN

10 TO 36V DC

OR 24V AC

NON-POLARIZED

INL

IN-

IN+

IN+ IN+

INL

TB1/TB2

INL

IN-

TB1/TB2

IN-

TB1/TB2

JUMP

DECADEBOX

JUMP

2-WIRE RTD

3-WIRE RTD RESISTANCE

D

D

A

TB1 TB4

12

IN0-

45RTN

13 IN0L

44OUT2

15

IN1-

42RTN

16

IN1L41OUT0

TB321

IN2+36LRTN

23 INL2

34

24

IN3+

33

26 INL3

31

PWR

B

11

14

IN0+

IN1+

46

43

OUT3

OUT1

22 IN2-

TB2

35COM

25

IN3-

32

934MBOnly

RS485

RTDINPUTS2,3

932MB/934MB

DIG.OUTDIG.OUT

RTDINPUTS0,1

UP TO

48V DC

MECHANICAL

RELAY INTERFACE

+

RTN

OUT



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942MBFrequency/

Pulse CounterModules

Periodic or PulseWaveform Input


Model942MB: 2 input channels

InputTwo input channels:0 to 50KHz in three selectable rangesAmplitudes up to 140V AC or 200V peakPulse counter range of 0 to 65535

OutputTwo output channels:Solid-state relays (1A DC loads)0 to 48V DC

Network Communication

Modbus-RTU high-speed RS-485



I Description

This signal conditioner is a two-channel analoginput module with discrete outputs and Modbuscommunication. It conditions periodic or pulsewaveform inputs and provides solid-state relaysfor limit alarms or ON/OFF control.

Versatile inputs accommodate many applicationsusing TTL, magnetic pickups, proximity sensors,or a variety of switches (high/low-side transistor,dry contact, open drain, open collector). Bipolar

and unipolar waveforms are supported with aselectable input bias that accepts both zero andnon-zero crossing signals. Voltage threshold andrelative hysteresis are also user selectable.

Inputs may also function as event counters withseparate microcontrollers for each channel. Themodule counts pulses on the positive or negativeedge. It can wrap around to zero for continuouscounting, latch at a programmed count value(setpoint), or automatically reset itself to zeroafter reaching a setpoint value. Software controlsenable remote resets. A variety of filters help

remove noise, jitter, and other mechanical effectsto prevent false counts.

The discrete outputs can operate as independentalarms or provide on/off control regulated by thehost system. As limit alarms, each output can beset for high and/or low setpoints exclusively tiedto an analog input. These low cost modules areideal for standalone alarms as well as for localbackup of the primary control system.

I Special Features


I Separate microcontrollers on each channel forpulse counting and period measurement

I Solid-state relay outputs enable local limitalarms or host-controlled on/off switching

I Bipolar and unipolar input signal support

I Programmable pulse counter functions

I Input filtering functions include hysteresis,averaging, debounce, relay time delay, andalarm deadband controls

I 4-way isolation (input, output, power, network)

I Watchdog timers provide a failsafe output


Modbus

TwoFrequency

orPulse

WaveformInputs

RS-485

10-36V DCor 24V AC

Isolation

Two

DiscreteOutputsor

Limit Alarms

Power


Frequency/Counter Module


Modbus/RS-485


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I Performance

I Frequency/Counter Input

Input RangesInput type user-configured. Applies to both channels.

Input Range Accuracy Accuracy over Temp.0 to 100Hz 0.04Hz 0.06Hz0 to 1000Hz 0.4Hz 0.6Hz0 to 50,000Hz 10Hz 15Hz0 to 65,535 pulses 1 pulse 1 pulse

Unipolar Input ConfigurationAmplitude: 0 to 3V minimum range,0 to 200V peak maximum range.

Threshold: Configurable for 1.5V or 5V, typical.

Hysteresis: Configurable for 25mV (at 1.5V thresh-old), or 83mV (at 5.0V threshold), typical.

Bipolar (Zero-Crossing) Input ConfigurationAmplitude (0-20KHz): 50mV minimum (with 25mVhysteresis), or 150mV minimum (with 83mV hys-teresis), to 200V peak maximum.

Amplitude (Above 20KHz): 100mV minimum (with25mV hysteresis), or 200mV minimum (with 83mVhysteresis), to 200V peak maximum.

Threshold: 0mV nominal, 0.01V typical with 25mVhysteresis; 0.03V typical with 83mV hysteresis.

Hysteresis: Configurable for 25mV or 83mV, typical.

Resolution0 to 100Hz input range: 0.01Hz0 to 1000Hz input range: 0.1Hz0 to 50,000Hz input range: 1HzPulse counter: 1 pulse

Minimum Input Pulse Width10S (frequency input); 5mS (pulse input).

Counting Rate100Hz maximum counting rate(5mS ON and 5mS OFF for 10mS period or 100Hz).

Input Impedance35K ohms, typical.

Input Filter Bandwidth-3dB at 35kHz, typical.

Input Pullup/PulldownSoftware selectable 2.7K ohm input pullup to +5V anda 1K ohm input pulldown to return. The resistors may

also be left floating (none).Input Debounce0 to 1.375 seconds, configurable in 5mS increments.

Noise RejectionCommon mode: 80dB @ 60Hz, typical with 100 ohminput unbalance.

I Discrete Output

Output TypeSolid-State Relay (SSR), one Form A (SPST-NO) switchper input channel. Outputs share a common returnconnection at the RTN terminals for low-side switching

Output Voltage Range

0 to 48V DC, 1A DC.Output ON Resistance0.4 ohms maximum.


OperationDigital outputs are set to their OFF state following asoftware or power-on reset. Outputs can be set touser-defined states following a watchdog timeout.

I Communication


Read Holding Registers Read CoilRead Input Registers Reset SlavePreset Single Register Report Slave IDForce Multiple Coils Force Single CoilPreset Multiple Registers



Power Requirements10 to 36V DC.22 to 26V AC.



942MB-0900Frequency/counter input module



TBK-B02Optional terminal block kit, barrier strip style, 4 pcs.




FREQUENCY INPUT

ANALOG INPUT

CONNECTIONS DIGITALOUTPUTS

45

46

TB4

DIGITAL OUTPUT

TB4

RTN

OUT1

444342

36

41

TB3

OUT0

11

TB1

12

FREQ.INPUT0,1

13 RTN

NC

141516

FRQ1

RTN

D

COM

COM

D

RS485

33

34

35

31

32

A

BPWR

TB3

TB1

ANALOGINPUT

AC/DCPOWER



OUT 3

OUT 0

OUT 2

RTN

OUT 1

RTN

TB4

OUT

RTN

DIGITAL OUTSHARES

RETURN

10 TO 36V DC

OR 24V AC

NON-POLARIZED

FRQ0

RTN

FRQ1

RTN

FREQUENCY

GENERATOR -

+

MAGNETIC

PICKUP -

+

HIGH-SIDE SWITCH(Open Collector/Drain)

FRQ0

RTN

FRQ0

RTN

FRQ0

RTN

MAGNETIC INPUT

or

FRQ0

RTNor

V+V+V+V+

LOW-SIDE SWITCH(Open Collector/Drain)

DRY CONTACT

FRQ0

RTN

TTLV+V+V+

NC

FRQ0

UP TO

48V DC

MECHANICAL

RELAY INTERFACE

+

RTN

OUT

TB1


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68

9 0 0 M B S e r i e s

Modbu

sI/O

BusWorks

262524

TB2TB1

(110.5)4.35

(99.1)3.90

232221

TB2

161512 13 1411

TB1

D AB

PWR

TB3

33 313236 3435

TB4

414243444546

D

COM

COM

RS485

TB3

TB4

DFT

32

10

ST

(118

.9)

4.6

8

(95

.3)

3.7

5

AcromagRUN

CL

(26.7)1.05

(59

.4)

2.3

4

NOTE: ALL DIMENSION ARE IN INCHES (MILLIMETERS)

"T" Rail Din MountingDin EN 50022, 35mm

900MB Series Technical Diagrams

PERSONAL COMPUTERW/WINDOWS 95/98 ORNT

RS-232 SERIALPORT CONNECTORATBACKOF PC

RS-232 TO RS-485 CONVERTERMODEL 5034-214

900C-SIP COMMUNICATION CONNECTIONS

CONNECT THE RS-232SIDE OF CONVERTERTOTHE PC

424345 44TB4

46

0 1

DFT

TB4

STSTATUS LED (YELLOW)

RUN/PWR LED (GREEN)

DEFAULT MODE SWITCH-PUSH FORDEFAULT MODE.

STATUSLED FLASHES INDEFAULT MODE.

RUN

Acromag

INSTALL MODBUSCONFIGURATIONSOFTWARE

CAUTION: DO NOTCONNECT THECABLE DIRECTLY TO THEPC WITHOUTTHECONVERTER, OR DAMAGETOTHEMODULEMAY RESULT.

CABLE5034-202

COM

D

D

CONNECT THE RS-485SIDE OF CONVERTERTO THECABLE

CONNECT WIRES AS SHOWN

RS-485

GREENC

BLACK

RED

B

A

COLORWIRE

BA

C

TB3

D

32

B

PWR

31

A

TB4

C OM D

COM

COM

36 35

DD34 33

RS485

41TB3

16 22 21

TB2

2 3 2 4 2 6 25

TB2TB1

REFER TO THEUSER'S MANUALTHAT CAME WITH YOUR MODULETO COMPLETE THEMODULE'SPOWER ANDI/O CONNECTIONS

32

R

TB1

12 1311

ANY900MB MODULE

TB1

14 15

PC RUNNING

ACROMAGMODBUS CONFIG

SOFTWARE

Model 5034-225USB-to-RS232 adapter

Length: 3.15 in (8.0 cm)Height: 0.80 in (2.03 cm)Width: 1.75 in (4.44 cm)Weight: 1.6 oz (45.36 g)

USB-to-RS232Adapter


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69

M o d b u s I / O

SoftwareInterface Package

This package includes Windows Configuration

Software, an RS-232-to-485 Serial PortConverter, and an RS-485 Signal Cable. Thesecomponents provide everything you need to setup a Series 900 I/O module from your desktopPC before installing it on the network.

I Ordering Information

900C-SIPSoftware Interface Package.Includes Configuration Software (5034-186),Non-isolated RS-232 to RS-485 Serial Port Converter

(5034-214), and RS-485 Cable (5034-202).Items can also be ordered separately below.

5034-186Configuration Software for Windows (95/98/2000/ME/NT4/XP) on CD-ROM.

5034-214Non-isolated RS-232 to RS-485 Serial Port Converter,DB-9F to DB-9F.

5034-202RS-485 to 3-wire Cable Converter,DB-9M to 3 x 12AWG RS-485 Cable, 8 ft.

Software Interface PackageModel No. 900C-SIP

RS-232 to RS-485Converter

(non-isolated)

Configuration Softwarefor Windows

RS-485 Cable

(DB-9)

Configuration Kit

Universal 50WPower Supply

The PS5R-D24 is theideal power sourceto drive yournetwork.

Input PowerRequirementUniversal power85 to 264V AC,105 to 370V DC

Output24V DC, 2.1A (50W)


PS5R-D24Universal Power Supply

DIN-RailMounting

For your convenience, Acromag offers severalmounting accessories to simplify your systeminstallation. Our 19 rack-mount kit provides aclean solution for mounting your I/O modulesand a power supply. Or you can buy precut DINrail strips for mounting on any flat surface.


20RM-16-DIN19" rack-mount kit with DIN rail.

DIN RAIL 3.0DIN RAIL 16.7DIN rail strip, Type T, 3 inches (75mm) or16.7 inches (425mm)

V.ADJ

DC ON

M3.5Terminal Screws

10-

6.5

4-

4.5

80

13 13 13 13

90

12

7.3

5

75

60

5

Top View(dimensions in mm)

35.3

6

95

3.8

Side View(dimensions in mm)

Dimensions in inches (mm).

RS-232/485Converter

(non-isolated)

5034-214

RS-485to 3-wire

5034-202

Network Power

Mounting Hardware


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70

9 0 0 M B S e r i e s

Modbu

sI/O

BusWorks

4SCC-TTMIsolated SignalConverter

This unit provides an isolated interface betweenthe host PCs RS-232 port and RS-485 Modbusnetwork devices. Signal conversion is bidirectionalwith operation that is transparent to all devices.The RS-485 network supports up to 32 devices(including the 4SCC-TTM Converter) across 4000foot distances. Installation of additional networkdevices or extending the distance requires the4SCR-TTM Network Repeater.

Specifications

Baud RatesSwitch-selectable from 300 to 38.4K baud.

DuplexHalf duplex only.

Network Termination ResistorsTwo terminal blocks and 120 ohm resistors provided toterminate both ends of the RS-485 network.

Wiring ConnectorsTerminal blocks with screw clamps for 14-26AWG.

Operating Temperature Range-25 to 60C (-13 to 140F).

IsolationWithstands 1500V AC surge for 60 seconds(250V AC or 354V DC continuous).


4SCC-TTM-1Signal Converter, 115V AC (power cord included)

4SCC-TTM-2Signal Converter, 230V AC (power cord included)

5020-924Signal Cable, 8ft. long, DB-9 to three wires.Connects PCs RS-232 port to 4SCC-TTM-x.

4SCR-TTMIsolated Network

RepeaterThis unit isolates and boosts RS-485 signals toextend communication distances or increase thenumber of devices on the network. Each Repeaterpermits the addition of a network branch with upto 32 devices (including the 4SCR-TTM) and willtransmit RS-485 signals another 4000 feet.Operation is transparent to all devices and nohandshaking is required. Two terminal blocks areprovided for 120 ohm resistors to terminate bothends of the network branch.

Specifications

Baud RatesSwitch-selectable from 300 to 38.4K baud.

DuplexHalf duplex only.

Network Termination ResistorsTwo terminal blocks and 120 ohm resistors provided toterminate both ends of the RS-485 network.

RS-485 Wiring ConnectorsTerminal blocks with screw clamps for 14-26AWG.

Power Wiring ConnectionsTerminal block with sc rew clamps for 12-18AWG.

Operating Temperature Range-25 to 60C (-13 to 140F).

Isolation

Withstands 1500V AC surge for 60 seconds(250V AC or 354V DC continuous).


4SCR-TTM-1Signal Converter, 115V AC power

4SCR-TTM-2Signal Converter, 230V AC power

40LC-GBW-1115V AC power cord


Shipping Weight3.0 lbs. (1.4 kg) packed.


Shipping Weight3.0 lbs. (1.4 kg) packed.

RS-232 to RS-485

RS-485 to RS-485


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M o d b u s I / O

SystemConnection

Isolated RS-232/485 Signal ConverterAcromag Model No. 4SCC-TTM

Daisy-ChainTopology RS-485 Network: Up to 32 devices, 4000ft. max.

RS-232

RS-485

Extendingthe Network

Isolated RS-485 Network RepeaterAcromag Model No. 4SCR-TTM

Network Branch: Additional 32 devices, 4000ft. extensionTo Network Host

RS-485RS-485

Model 5034-225USB-to-RS232 adapter

Length: 3.15 in (8.0 cm)Height: 0.80 in (2.03 cm)Width: 1.75 in (4.44 cm)Weight: 1.6 oz (45.36 g)

USB-to-RS232 Adapter

busworks section

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