1

The Leader in Industrial Data Communication Solutions

Wireless Technology & Applications Part Two

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Wireless Architectures

Wireless Design Considerations Protocol (Ethernet or Serial?) Topology (Point to Point or Multi-point?) Data rate Latency Communication interruption Safety

3

Wireless Serial Architectures

Wireless serial Point to point = DF1 Full Duplex SRM6000, SRM6100 or PLR5000 Wireless Serial Modem

ANTENNA

SRM6000

(425) 882-2206

12VDC

NC

4

DI 3

DO

2

CD

1

9 N

C

8 C

TS

7 R

TS

6 N

C

GD

5

DATA-LINC GROUP

P C I OANTENNA

SRM6000

(425) 882-2206

12VDC

NC

4

DI 3

DO

2

CD

1

9 N

C

8 C

TS

7 R

TS

6 N

C

GD

5

DATA-LINC GROUP

P C I O

RS232

“Channel 0” DF1 Full Duplex Mode

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Wireless Serial Architectures

Point to Multi-point DF1 Half Duplex Polling Master Use node addressing & messaging

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Wireless Serial Architectures

SRM6000

DF1 Polling Master

Tank 1

Tank 2

Pump Stations

SRM6000

SRM6000

SRM6000

SRM6000

SRM6000

SRM6000

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Example: DF1 Radio Modem Protocol

Pump Stations (Remote Sites):§ Data-Linc SRM6000-SLC Master§ SLC5 as DF1 Radio Modem§ Directional antenna for longer range

and/or higher quality communications

SLC5/xx Channel 0 Configuration:

Control Room (Master Site):§ Data-Linc SRM6000-SLC Master§ SLC5 as DF1 Radio Modem with repeat§ Omni-directional antenna for

communications in all directions

DF1 Radio Modem Protocol:§ Available in SLC5 and Micrologix

families§ No polling needed for remote initiated

messages§ Reduced “Report By Exception”

response times§ Improved data throughput§ Peer to Peer communications even

without LOS between remote sites

ALLEN-BRADLEYANT.

SRM6000A-B SLC

VD

C

CONFIG

DATA-LINCGROUP

(425) 882-2206

RS

23

2

GND - 5

- 4

DI - 3

DO - 2

CD - 1

PCIO

SLC5/0X CPUFORCE

RS232

RUN

FLT

BATT

RUN REM PROG

ALLEN-BRADLEYANT.

SRM6000A-B SLC

VD

C

CONFIG

DATA-LINCGROUP

(425) 882-2206

RS

232

GND - 5

- 4

DI - 3

DO - 2

CD - 1

PCIO

SLC5/0X CPUFORCE

RS232

RUN

FLT

BATT

RUN REM PROG

7

Wireless NetLinx Solutions

Rockwell’s NetLinx architecture features seamless communications between: Ethernet/IP ControlNet DeviceNet

NetLinx supports: Configuration (programming) Control Data collection

Wireless Ethernet Solutions

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NetLinx

Drive1Sensor Analog I/O Drive3Drive2

ALLEN-BRADLEY

7 8 9

4 5 6

1 2 3

. 0 -

<-----------------'<--

F1

F6

F2

F7

F3

F8

F4

F9

F5

F10

PanelView 550

< >

^

v

HMI

ControlLogix

Workstations

RSLinx Servers

ControlNetControlLogix

DeviceNet

Ethernet

DeviceNet

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Wireless NetLinx

Drive1Sensor Analog I/O

ALLEN-BRADLEY

7 8 9

4 5 6

1 2 3

. 0 -

<-----------------'<--

F1

F6

F2

F7

F3

F8

F4

F9

F5

F10

PanelView 550

< >

^

v

HMI

ControlLogix

Workstations

RSLinx Servers

ControlNetControlLogix

DeviceNet

SRM6200E

DeviceNet

SRM6200E

SRM6200E

Remote Workstation

Remote Controller

SRM6200E

ALLEN-BRADLEY

7 8 9

4 5 6

1 2 3

. 0 -

<-----------------'<--

F1

F6

F2

F7

F3

F8

F4

F9

F5

F10

PanelView 550

< >

^

v

Remote HMI

Wireless NetLinx

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Explicit messaging (CIP) Supports Rockwell Controller Families

Logix platforms: ControlLogix, CompactLogix, FlexLogix Traditional platforms: SLC5/05, PLC5, MicroLogix

1761-netENI converters (serial connectivity) DeviceNet connectivity via 1761-netDNI PowerMonitors, DriveLogix, PanelViews, etc.

Wireless NetLinx Solutions

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SRM6210E

Workstation

Server

Switch

ITNetwork

Plant Network

SRM6210E

SRM6210E

Remote Sites

PLC with processor

PLC with processor

Diagram 1: Example of a wireless Ethernet/IP network using explicit messaging. Thenetwork supports PLC programming, data collection and SCADA functions.

PLC with processor

I/O

I/O

10Base-T Ethernet

10Base-T Ethernet

Wireless Ethernet Applications

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Processor-less I/O (Implicit messaging) Designed for high speed, dedicated Ethernet segments Uses UDP multi-cast packets

Wireless has limited applications Timeout, latency concerns Non-deterministic applications only Not recommended for safety related I/O

Wireless a good solution for: SCADA type functions Non-critical remote I/O

Wireless I/O (Ethernet/IP)

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PLC with processor Ethernet/IP I/O Chassis

Diagram 2: Example of a wireless Ethernet/IP network using implicit messaging for non-critical data aquisition and control.

100Base-T Ethernet

FastLinc 810E

I/O

Wireless Ethernet Applications

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Wireless Design Guidelines

RF site survey Line-of-sight? Other existing RF systems? What

frequencies? Antenna placement Theoretical (software) survey

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RF Site Surveys (Theoretical)

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RF Site Surveys (Theoretical)

RF SourceStation

ThisLocation

Terrain Cross-Section

0.6 Fresnel Zone

Distancebetween

antennas

Minimumclearance on RF

PathCalculated RF

Path LossCalculated Receiver

Signal Strength

Cross-Sectional Plot Explanation

The RF Path

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Wireless Design Guidelines

•Installation considerations

•Proper antenna mounting

•Proper coax wiring

•Lightning arrestors HIGHLY recommended!

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Wireless Design Guidelines

ANTENNA

SRM6000

(425) 882-2206

12VDC

NC

4

DI

3

DO

2

CD

1

9 N

C

8 C

TS

7 R

TS

6 N

C

GD

5

DATA-LINC GROUP

P C I O

LightningArrestor

OmniAntenna

GroundWiring

LMR400Coax

LMR240Coax

SRMSeries

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Wireless Management Tools

LincView OPC Software for managing SRM networks Compatible with serial or Ethernet systems Resides on PC at Master location Graphical display of each RF link Pre-settable alerts and alarms Remote modem configuration (caution!) OPC server for data exchange (e.g. HMI)

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LincView OPC Example

Eth

ern

et

LAN

Link

In

Out

Coll

RF

Power

Link

Out

In

Power

Ethernet Radio Modem

Reset/Confg

+V-V

10 to 28 VDC

10BaseT

Use A or B for Lan Link

Radio Configuration

OE

A B

UserEquipment

Eth

ern

et

LAN

Link

In

Out

Coll

RF

Power

Link

Out

In

Power

Ethernet Radio Modem

Reset/Confg

+V-V

10 to 28 VDC

10BaseT

Use A or B for Lan Link

Radio Configuration

OE

A B

DiagnosticComputer

UserEquipment

LAN

Link

In

Out

Coll

RF

Power

Link

Out

In

Power

Ethernet Radio Modem

Reset/Confg

+V-V

10 to 28 VDC

10BaseT

Use A or B for Lan Link

Radio Configuration

OE

A B

UserEquipment

SRM6210EMaster

SRM6210ERemote

SRM6210ERemote

1 2 3 4 5 6 7 8 U D

10 Base-T 8 Port Switch

Logix5550I/O

RS232

RUN

BATRUN REM PROG

OK

ALLEN-BRADLEY

Terminal Server

Optional

(side)

DB9 Port

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LincView OPC Example

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LincView OPC Example (RSView)