wtw MIQ/2-MOD Operating Manual
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wtw MIQ/2-MOD Operating Manual

Iq sensor net
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Operating Manual
IQ S
N
ENSOR
ET
MIQ/2-MOD
Modbus
master
Modbus RTU / RS 485
Controller
Further
Further
Modbus module
MIQ/MC2
Modbus
Modbus
devices
devices
Modbus RTU and RS 485 connection
for the IQ S
N
ENSOR
ET
System 2020 XT C
and System 2020 XT USB
ONNECT
ba75973e01
07/2012

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Summary of Contents for wtw MIQ/2-MOD

  • Page 1 Operating Manual IQ S ENSOR MIQ/2-MOD Modbus master Modbus RTU / RS 485 Controller Further Further Modbus module MIQ/MC2 Modbus Modbus devices devices Modbus RTU and RS 485 connection for the IQ S ENSOR System 2020 XT C and System 2020 XT USB...
  • Page 2 The latest version of the present operating manual can be found on the Internet under www.WTW.com. © Copyright Weilheim 2012, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany. ba75973e01 07/2012...

  • Page 3: Table Of Contents

    Technical data ....... . .27 IQ S component, MIQ/2-MOD ... 27 ENSOR...
  • Page 4 Contents MIQ/2-MOD ba75973e01 07/2012...

  • Page 5: Overview

    IQ S System 2020 XT (C / USB). Is ENSOR ONNECT contains the description of the MIQ/2-MOD module. File this operating manual directly behind the system operating manual. Structure of the IQ Sensor Net Operating Manual IQ S...

  • Page 6: Modbus And Iq Sensor Net System 2020 Xt

    The power supply unit is only required for power supply and is not used in the system communication. With the -MOD option, the MIQ/2-MOD module upgrades the system communication by a Modbus interface. Via this interface, sensor data can be queried with the Modbus RTU protocol.

  • Page 7: Safety

    MIQ/2-MOD Safety Safety Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe oper- ation of the product. Read this operating manual thoroughly and make yourself familiar with the product before putting it into operation or working with it.

  • Page 8: Safe Operation

    Safe operation 2.2.1 Authorized use The authorized use of the MIQ/2-MOD consists of its use as an inter- face to a Modbus. Only the operation and running of the product according to the instructions and technical specifications given in this operating manual is authorized (see chapter 8 T ).
  • Page 9 MIQ/2-MOD Safety Special user qualifications The following installation activities may only be performed by a quali- fied electrician:  Connection of the MIQ/PS power supply module to the power line (see MIQ/PS module manual).  Connection of external, line voltage-carrying circuits to relay con- tacts (see module manual of the relay output module).
  • Page 10 Safety MIQ/2-MOD 2 - 10 ba75973e01 07/2012...

  • Page 11: Interface For The Modbus Rtu

    2.111) with many practical installation tips that apply to Modbus systems as well. Scope of delivery The scope of delivery of the MIQ/2-MOD module comprises:  MIQ/2-MOD  Accessory set, including: – 4 x cable glands (clamping range 4.5-10 mm) with seals and blind plugs –...

  • Page 12: Modbus Checklist

    Interface for the Modbus RTU MIQ/2-MOD Modbus checklist The following checklist supports you when planning, projecting and installing a Modbus plant with the IQ S . For smooth ENSOR operation, you should be able to answer all questions with "Yes".

  • Page 13: Connecting The Modbus Cable

    Types: VS-09-PROFB-SC (Phoenix article no. 1654549, with screwed contacts, available from WTW under the order no. 902 888) VS-09-PROFB-SP (Phoenix article no. 1654345, with spring contacts) To remove the blind plug, lift the safety bracket with a suitable screw driver at both clamps on the left and right side (see Fig.
  • Page 14 Interface for the Modbus RTU MIQ/2-MOD All cables with electrical characteristics according to EN 50170 are suitable as a Modbus cable (e.g. all Profibus cables). approx. 100 mm Fig. 3-2 IQ S with Phoenix connector ENSOR Pin assignment of the...

  • Page 15: Setting The Modbus Interface Parameters

    MIQ/2-MOD Interface for the Modbus RTU Please observe the operating manual of the connector. Setting the Modbus interface parameters The setting of the Modbus interface parameters (RS 485 interface) is MODBUS Konfiguration done in the menu, Settings Setting Selection/Values Description Device Address 1 ...

  • Page 16: Transmitted Sensor Data

    Interface for the Modbus RTU MIQ/2-MOD Edit the setting table. Save and To accept all settings, you have to highlight the quit menu item at the lower end of the setting table and to confirm with <OK>. If you exit the setting table via <M>,...

  • Page 17: Sensor Administration Under Modbus

    Interface for the Modbus RTU The transmitted data of all IQ S sensors is given ENSOR in the WTW document, "IQ S sensors: encoded ENSOR data for field bus communication" (ba75560de). It is regu- larly updated when new sensors are introduced and when the sensor software is changed (if it concerns the transmit- ted sensor data).
  • Page 18 Interface for the Modbus RTU MIQ/2-MOD Creating the assignment You want to install an IQ S system and, at the same time, to ENSOR of sensor numbers create a specific sequence of sensor number assignments to the sen- sors. Carry out a system start without any sensors (see system oper- ating manual).

  • Page 19: Sensor Data Block

    MIQ/2-MOD Interface for the Modbus RTU 3.5.3 Sensor data block The data block contains the data of the sensors in the order of their reg- istering on the IQ S (Sxx number). ENSOR The data of a sensor are stored in 8 registers each.

  • Page 20: Data Formats

    Interface for the Modbus RTU MIQ/2-MOD Modbus Information Data format Register Data type 0009 2 [= sensor number (S02)] (Int 8) 0009 9-16 Sensor status (Int 8) 0010 1-16 Sensor model (Int 16) 15-0 0011 1-16 Status info (Int 16)
  • Page 21 MIQ/2-MOD Interface for the Modbus RTU Bit representation Byte MSB* LSB* 31 - 24 S = sign (bit 31) S E E E E E E E E = Exponent (Bit 30-23) 23 - 16 E M M M M M M M...

  • Page 22: Modbus Query

    Interface for the Modbus RTU MIQ/2-MOD Bit representation Information High byte Low byte INT8 All other data are transmitted in the INT8 format. This data consists of one byte. The data for the measured value status of the main and secondary measured values are encoded jointly into a single byte.
  • Page 23 MIQ/2-MOD Interface for the Modbus RTU Modbus query Byte Value Information Meaning of the value Modbus address of 01h --> 1 the IQ S ENSOR Function 04h --> 4 Read Input Register (see section 3.5.1) Start address HI 0008h --> 8...
  • Page 24 Interface for the Modbus RTU MIQ/2-MOD Modbus response Byte Value Information Meaning of the value Contents of register 11 (HI) = status info 0000h (Int 16) --> no errors Contents of register 11 (LO) = status info Contents of register 12 (HI) 00h (Int 8) -->...

  • Page 25: What To Do If

    – Incorrect setting of address, – Check/change the settings baud rate, parity – Incorrect protocol – Adapt the protocol – MIQ/2-MOD module defec- – Return the MIQ/2-MOD module tive to WTW The Modbus master does Cause Remedy not receive any plausible –...
  • Page 26 What to do if ... MIQ/2-MOD ba75973e01 07/2012...

  • Page 27: Technical Data

    T of the ECHNICAL DATA IQ S system operating manual). ENSOR Power consumption 1,6 W Protective class Number of MIQ/2-MOD in an IQ S ENSOR system Instrument safety Applicable norms – EN 61010-1 – UL 61010-1 – CAN/CSA C22.2#61010-1...
  • Page 28 Technical data MIQ/2-MOD ba75973e01 07/2012...
  • Page 30 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

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