ver. 5 serverscheckmanuals.serverscheck.com/infrasensing_modbus_manualv5.pdf · 1. serverscheck...

Modbus TCP Manual

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SERVERSCHECK

FEBRUARY 2019

Modbus TCP User Manual and Reference Document

Simply Smart Monitoring

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Ver. 5

Copyright:Copyright © 2018 ServersCheck BVBAAll rights reserved.Reproduction without permission is prohibited.

Software:The software described in this manual is furnished under a license agreement and may beused only in accordance with the terms of that agreement.

Trademarks:ServersCheck is a trademark of ServersCheck.All other trademarks or registered marks in this manual belong to their respectivemanufacturers.

Disclaimer:Information in this document is subject to change without notice and does not represent acommitment on the part of ServersCheck.

ServersCheck provides this document “as is,” without warranty of any kind, either expressedor implied, including, but not limited to, its particular purpose. ServersCheck reserves theright to make improvements and/or changes to this manual, or to the products and/or theprograms described in this manual, at any time.

ServersCheck has made this document to the best of its abilities. However ServersCheckassumes no responsibility for its use, or for any infringements on the rights of third partiesthat may result from its use.

This product might include unintentional technical or typographical errors. Changes areperiodically made to the information herein to correct such errors, and these changes areincorporated into new editions of the publication.

For safety reasons, the SensorGateways and sensor probes may never be moved, fully or partially covered while operating.

Warranty:For the warranty on this product please visit https://serverscheck.com/OPENING SENSORGATEWAY OR EXTERNAL SENSOR PROBE VOIDS THE WARRANTY

Certifications:

The ServersCheck sensors are FCC (Class A) & CE (Class B) certified. Certificates can be downloaded from https://serverscheck.com/sensors

https://serverscheck.com/

https://serverscheck.com/sensors

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Table of Contents

1. ServersCheckSensorsCompatibility 4 1.1. Connectivity to Serverscheck Sensorgateway Using Modbus TCP 4 1.2. How to Use this Manual 4 1.3. Sensorgateway Compatibility 4 1.4. Compatibility with Serverscheck Sensors 4

2.GettingStarted 5 2.1 Implementation 5 2.2 Enabling Modbus TCP 5 2.3 Supported Registers 7 2.4 Function Codes Supported 7 2.5 Error Codes Supported 8

3.ModbusRegisterList 10 3.1 Sensorgateway with Sensorhub Register List 10 3.2 Sensorgateway with Wireless Sensors Register List 77 3.3 Sensorhub Input Register List 110 3.4 Sensorhub Output Register List 111 3.5 Sensorhub Relay Register List 112 3.6 I/O Sensor Probe Input Register List 113 3.7 I/O Sensor Probe Output Register List 115

4.HowtoReadRegisters 116

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1. ServersCheckSensorsCompatibility

1.1. ConnectivitytoServerscheckSensorgatewayUsingModbusTCP

This document describes the Modbus information which includes implementation basics, supported types, frame format, function code and similar subjects.

1.2. HowtoUsethisManual

This information is organized based on the module that you connect to the Sensorgateway.

Every Sensorgateway has a built-in Temperature probe, Modbus pt for Node 0 will always be the Internal Temperature of the Gateway either for Wired or Wireless.

Starting Firmware7.41, it includes the Internal Ping. So Node 1 will always be for the Internal Ping.

All offered units are Modular, so this Reference guide will provide all Modbus list depending on the mod-ules and combination of sensors that a customer will connect.

1.3. SensorgatewayCompatibility

The Modbus TCP capability is available on FirmwareVersion6.21 and higher.

1.4. CompatibilitywithServerscheckSensors

Being all our products modular, the Modbus TCP reference list should cover the ff products: A. Wired Sensor Gateway B. Mobile Sensor Gateway C. Sensorhub D. Wireless Hub E. Wireless Temperature and Humidity Probe F. Wireless Temperature Sensor G. Wired Temperature and Humidity Sensor H. Wired Temperature Sensor I. Digital Airflow Sensor J. Digital Shock Sensor K. Stainless Steel Temperature Sensor L. Sound (db) Sensor

M. Dust Particle Sensor N. Flooding/Water Sensor O. Power Failure Sensor P. IO Dry Contact Sensor Q. Door Contact Sensor R. Multi-Sensor and Hub S. Smoke Sensor T. AC Current Sensor U. AC Power Voltage V. DC Power Voltage and Current W. Fuel Level Sensor

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2.GettingStarted

2.1Implementation

Modbus TCP is an open standard protocol which uses regular Ethernet cable and switches to communicate within each other. It provides data acquisition and control, through query and response within the IP network.

DefaultModbusPort-502

2.2EnablingModbusTCP

Modbus TCP is disabled by default.

We invite you to watch the unboxing video before unpacking, installing and configuring your ServersCheck sensors: https://serverscheck.com/sensors/sensorgateway_unboxing_video.asp

Once you set up the web interface, you should see the Modbus Tab under the Settings option. (For Firmware 8.0 and above)

https://serverscheck.com/sensors/sensorgateway_unboxing_video.asp

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Enable ModbusServer, set up the ServerPort(Defaultis502) and set ModbusID(defaultis1).

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2.3SupportedRegisters

Coils(DiscreteOutputs)- 00001 to 09999 (Read/Write)

InputStatus- 10001 to 19999 (Read)

InputRegisters- 30001 to 39999 (Read)

HoldingRegisters - 40001 to 49999 (Read/Write)

2.4FunctionCodesSupported

Code Function Description

01 Read Coils

Read from 1 to 2000 contiguous status of coils managed by the serv-

er. Coils in the response message are packed as one per bit of a byte,

1=On and 0=Off. If the requested quantity of coils is not a multiple of

8, zeros are padded in final byte.

02 Read Input Status

Read from 1 to 2000 contiguous input status managed by the serv-er. Discrete inputs in the response message are packed as one per bit

of a byte, 1=On and 0=Off. If the requested number of inputs is not a multiple of 8, zeros are padded in

the final byte.

03 Read Holding Registers

Read the contents of contiguous block of 1 to 127 holding registers. Data are packed as two bytes per

register; the first byte contains the high order bits.

04 Read Input Registers

Read the contents of contiguous block of 1 to 127 Input registers. Data are packed as two bytes per

register; the first byte contains the high order bits.

16 Set Multiple Registers Write values into a block of contigu-ous registers (1 to 120)

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2.5ErrorCodesSupported

ExceptionCode Name Meaning

1 (01 hex) Illegal Function

The function code received in the query is not an allowable action

for the slave. This may be because the function code is only applica-ble to newer devices, and was not implemented in the unit selected. It could also indicate that the slave is in the wrong state to process a

request of this type, for example be-cause it is unconfigured and is being asked to return register values. If a Poll Program Complete command

was issued, this code indicates that no program function preceded it.

2 (02 hex) Illegal Data Address

The data address received in the query is not an allowable address

for the slave. More specifically, the combination of reference number and transfer length is invalid. For a controller with 100 registers, a

request with offset 96 and length 4 would succeed, a request with offset 96 and length 5 will generate excep-

tion 02.

3 (03 hex) Illegal Data Value

A value contained in the query data field is not an allowable value for the slave. This indicates a fault in

the structure of remainder of a com-plex request, such as that the im-

plied length is incorrect. It specifical-ly does NOT mean that a data item submitted for storage in a register

has a value outside the expectation of the application program, since the MODBUS protocol is unaware

of the significance of any particular value of any particular register.

4 (04 hex) Slave Device FailureAn unrecoverable error occurred while the slave was attempting to

perform the requested action.

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5 (05 hex) Acknowledge

Specialized use in conjunction with programming commands. The slave

has accepted the request and is processing it, but a long duration of time will be required to do so. This response is returned to prevent a

timeout error from occurring in the master. The master can next issue a Poll Program Complete message to determine if processing is complet-

ed

6 (06 hex) Slave Device Busy

Specialized use in conjunction with programming commands. The slave is engaged in processing a long-du-

ration program command. The mas-ter should retransmit the message

later when the slave is free.

7 (07 hex) Negative Acknowledge

The slave cannot perform the pro-gram function received in the query. This code is returned for an unsuc-cessful programming request using function code 13 or 14 decimal. The master should request diagnostic or

error information from the slave.

8 (08 hex) Memory Parity Error

Specialized use in conjunction with function codes 20 and 21 and ref-erence type 6, to indicate that the extended file area failed to pass a consistency check. The slave at-

tempted to read extended memory or record file, but detected a parity

error in memory. The master can retry the request, but service may be required on the slave device.

10 (0A hex) Gateway Path Unavailable

Specialized use in conjunction with gateways, indicates that the gateway

was unable to allocate an internal communication path from the input port to the output port for process-ing the request. Usually means the gateway is misconfigured or over-

loaded.

11 (0B hex) Gateway Target Device Failed to Respond

Specialized use in conjunction with gateways,indicates that no response

was obtained from the target de-vice. Usually means that the device

is not present on the network.

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3.ModbusRegisterList

3.1SensorgatewaywithSensorhubRegisterList Things to remember:

* The built-in Temperature Sensor of the Sensorgateway is always on Node 0.

* For Firmware7.41andabove, Internal Ping is always on Node 1. Even if the Ping is disabled, it still picks the last value before you disabled it.

* Wired Temperature and Humidity Sensor Probe has 3 node values which appear as follows: - 1st node value - Temperature - 2nd node value - Humidity - 3rd node value - Dewpoint

* Node numbers follows as to what Sensor is plugged first on the Sensor Ports or what is shown first on the web interface.

* If a particular sensor connected has an alarm on the Warning and Down Range, it will trigger the register either for Alarm Warning or Alarm Down respectively regardless of either the value is less than (<) or the value is greater than (>) than the threshold.

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Length = 4, Floating Node 0 Value 30200-30201

Length = 3, Unsigned Node 0 State 10200 0 - Offline,

1 - Online

Length = 4, Unsigned Node 0 Type 30202

1 - Temperature2 - Humidity3 - Airflow4 - Shock5 - Dust7 - Sound Pressure8 - Power Failure Sensor9 - Leak 10 - CO12 - Door Contact Security 13 - Dewpoint 14 - Fuel Level (Fuel Level Sensor)15 - Flow Rate (Fuel Level Sensor)16 - Resistance19 - Motion20 - Smoke21 - Light24 - Volt (AC/DC Power Sensor)25 - Amp (AC/DC Power Sensor)26 - Watt (AC/DC Power Sensor)27 - WattHour (AC/DC Power Sensor)28 - Ping

Node0Registers

LengthandType DataLabel Status Coils Input

RegisterHoldingRegister Notes:

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Length = 4, Unsigned

Node 0 Connection 30203 0 - Gateway,

1 - Sensor HubLength = 3, Unsigned

Node 0 in Alarm Down 10201


Node 0 in Alarm Warning 10202

Length = 8, Floating

Node 0Threshold High

Down40200-40201


Node 0 Threshold High

Warning40202-40203


Node 0 Threshold Low

Down40204-40205



Warning40206-40207

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Down40232-40233



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Warning40238-40239

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Down40264-40265



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Down40296-40297



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Warning40302-40303

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Down40328-40329



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Warning40334-40335

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Down40392-40393



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Warning40398-40399

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Down40424-40425



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Warning40430-40431

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Down40456-40457



Warning40458-40459



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Warning40462-40463

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Down40488-40489



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Warning40494-40495

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Down40520-40521



Warning40522-40523



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Warning40526-40527

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Down40552-40553



Warning40554-40555



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Warning40558-40559

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Down40584-40585



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Warning40590-40591

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Down40616-40617



Warning40618-40619



Down40620-40621



Warning40622-40623

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Down40648-40649



Warning40650-40651



Down40652-40653



Warning40654-40655

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Down40680-40681



Warning40682-40683



Down40684-40685



Warning40686-40687

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Down40712-40713



Warning40714-40715



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Warning40718-40719

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Warning40750-40751

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Warning40782-40783

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Down40808-40809



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Warning40814-40815

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Down40840-40841



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Down40844-40845



Warning40846-40847

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Down40872-40873



Warning40874-40875



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Warning40878-40879

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Down40904-40905



Warning40906-40907



Down40908-40909



Warning40910-40911

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Down40936-40937



Warning40938-40939



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Warning40942-40943

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Down40968-40969



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Warning40974-40975

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Down41000-41001



Warning41002-41003



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Warning41006-41007

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Down41032-41033



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Down41036-41037



Warning41038-41039

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Down41064-41065



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Warning41070-41071

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Down41096-41097



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Down41100-41101



Warning41102-41103

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Down41128-41129



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Warning41134-41135

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Down41160-41161



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Warning41198-41199

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Warning41230-41231

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3.2SensorgatewaywithWirelessSensorsRegisterList Things to remember:

* The built-in Temperature Sensor of the Sensorgateway is always on Node 0.

* For Firmware7.41andabove, Internal Ping is always on Node 1. Even if the Ping is disabled, it still picks the last value before you disabled it.

* The Wireless Sensors that shows on chronological order on the web interface, take reference in the num-bering of the Node Number.



1 - Online


1 - Wireless Temperature2 - Wireless Humidity


Node 0 Connection 30203 2 - Wireless Hub







Down40200-40201



Warning40202-40203



Down40204-40205



Warning40206-40207

Node0Registers



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Down43200-43201



Warning43202-43203



Down43204-43205



Warning43206-43207

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Warning43234-43235



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Warning43238-43239

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Down43296-43297



Warning43298-43299



Down43300-43301



Warning43302-43303

Node4Registers



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Down43328-43329



Warning43330-43331



Down43332-43333



Warning43334-43335

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Down43392-43393



Warning43394-43395



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Warning43398-43399

Node7Registers



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Down43424-43425



Warning43426-43427



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Warning43430-43431

Node8Registers



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Down43456-43457



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Warning43462-43463

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Down43488-43489



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Warning43494-43495

Node10Registers



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Down43520-43521



Warning43522-43523



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Warning43526-43527

Node11Registers



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Down43552-43553



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Down43680-43681



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Down43712-43713



Warning43714-43715



Down43716-43717



Warning43718-43719

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Down43744-43745



Warning43746-43747



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Down43776-43777



Warning43778-43779



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Warning43782-43783

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Down43808-43809



Warning43810-43811



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Warning43814-43815

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Down43840-43841



Warning43842-43843



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Warning43846-43847

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Down43872-43873



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Down43876-43877


Node 22Threshold Low

Warning43878-43879

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Down43904-43905



Warning43906-43907



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Warning44006-44007

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Warning44034-44035



Down44036-44037



Warning44038-44039

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Warning44066-44067



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Warning44070-44071

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Warning44098-44099



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Warning44102-44103

Node29Registers



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Warning44130-44131



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Warning44134-44135

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Down44160-44161



Warning44162-44163



Down44164-44165



Warning44166-44167

Node31Registers



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1 - Online











Down44192-44193



Warning44194-44195



Down44196-44197



Warning44198-44199

Node32Registers



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3.3SensorhubInputRegisterList

Length = 4, Unsigned Input 1 State 30001

Length = 4, Unsigned Input 1 in Alarm 10001

Length = 4, Unsigned Input 1 Control 1












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3.4SensorhubOutputRegisterList

Length = 4, Unsigned Output 1 State 30100 0 - Off, 1 - On


Output 1 in Alarm 10100 0 - Off, 1 - On


Output 1 Control 100 0 - Off, 1 - On





Output 2 Con-trol 101 0 - Off, 1 - On













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3.5SensorhubRelayRegisterList

Length = 2, Unsigned Relay 1 State 30150 0 - Off, 1 - On

Length = 2, Unsigned Relay 1 in Alarm 10150 0 - Off, 1 - On

Length = 2, Unsigned Relay 1 Control 150 0 - Off, 1 - On

Length = 2, Unsigned Relay 2 State 30151 0 - Off, 1 - On

Length = 2, Unsigned Relay 2 in Alarm 10151 0 - Off, 1 - On

Length = 2, Unsigned Relay 2 Control 151 0 - Off, 1 - On



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3.6I/OSensorProbeInputRegisterList

Length = 16, Unsigned Input 1 State 30001 0 - Open,

1 - CloseLength = 16,

Unsigned Input 1 in Alarm 10001 0 - Ok, 1 - Triggered
























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UnsignedInput 10 in

Alarm 10010 0 - Ok, 1 - Triggered



UnsignedInput 11 in




UnsignedInput 12 in




UnsignedInput 13 in




UnsignedInput 14 in




UnsignedInput 15 in




UnsignedInput 16 in




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3.7I/OSensorProbeOutputRegisterList

Length = 4, Unsigned Output 1 State 30100 0 - off,

1 - onLength = 4, Unsigned

Output 1 in Alarm 10100 0 - off,


Output 1 Control 100 0 - off,

1 - onLength = 4, Unsigned Output 2 State 30101 0 - off,















1 - on



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4.HowtoReadRegisters

We will be using Modbus Poll as an example to generate the values from the Register Table. Modbus poll is a freeware downloadable over the web.

1. Set up an IP address first for the Sensorgateway and enable Modbus Settings as described on Section2.2 of this manual.

2. Once done, open Modbus Poll

3. Go to Connection - Connect

Select TCP/IP Set the IP address. This is the IP address you have set on the Sensorgateway Port - By default Port is 502

Click OK.

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4. Go to Setup - Poll Definition

Setup the Slave ID. This is the Modbus ID option on Modbus tab of the Sensorgateway web interface.

Select the Function one will need to read based on the Registers List - Coil Status - Input Status - Holding Register - Input Register

Select the Address. This will be the starting address of the register point that one will read.

Select the length. This is under the Column Length and Type on the Table.

Select Scan Rate. Any number between 50 to 60000.

As an example, we want to read the 30200 point which is the internal temperature of the sensorgateway

Here are the settings:

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Once you have retrieved values, go to Display and select the applicable Value Type of the Register that you will get the value. In this example, it is a Floating Value.

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