Honeywell TWM 9000 Supplementary Instructions Manual
  1. Manuals
  2. Brands
  3. Honeywell Manuals
  4. Measuring Instruments
  5. TWM 9000
  6. Supplementary instructions manual
Honeywell TWM 9000 Supplementary Instructions Manual

Honeywell TWM 9000 Supplementary Instructions Manual

Signal converter for electromagnetic flowmeters
Hide thumbs Also See for TWM 9000:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Supplementary Instructions Manual
TWM 9000
TWM 9000
TWM 9000
TWM 9000
Signal converter for electromagnetic flowmeters
Description of Modbus interface
Description of Modbus interface
Description of Modbus interface
Description of Modbus interface
Electronic Revision: ER 3.2.xx (SW.REV. 3.2x)
Modbus version 1.1.x
The documentation is only complete when used in combination with the relevant
documentation for the sensor.
Supplementary instructions
Supplementary instructions
Supplementary instructions
Supplementary instructions

Advertisement

Table of Contents
loading

Related Manuals for Honeywell TWM 9000

Summary of Contents for Honeywell TWM 9000

  • Page 1 TWM 9000 TWM 9000 TWM 9000 TWM 9000 Supplementary instructions Supplementary instructions Supplementary instructions Supplementary instructions Signal converter for electromagnetic flowmeters Description of Modbus interface Description of Modbus interface Description of Modbus interface Description of Modbus interface Electronic Revision: ER 3.2.xx (SW.REV. 3.2x) Modbus version 1.1.x...
  • Page 2 CONTENTS TWM 9000 1 Important information 2 Technical data 2.1 General technical data ..................... 5 2.2 Technical data of the Modbus interface (acc. to EIA standards) ........5 3 Connection in bus systems 4 Local configuration 5 Electrical connection 6 Modbus protocol 6.1 General information concerning the protocol ...............

  • Page 3: Important Information

    IMPORTANT INFORMATION TWM 9000 The flow converter with the RS485 interface card fitted, is able to communicate with an external device (PC or other suitable computer system) using the Modbus protocol. This option allows data exchange between PC or computer and single or multiple devices.
  • Page 4 IMPORTANT INFORMATION TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...

  • Page 5: Technical Data

    TECHNICAL DATA TWM 9000 2.1 General technical data Interface RS485, galvanically isolated Baud rate 1200, 2400, 4800, 9600, 19200, 38400, 57600 or 115200 Protocol Modbus RTU (available as a separate document on request) Maximum participants on bus 32 per line, master included (may be extended by repeaters)
  • Page 6 TECHNICAL DATA TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...

  • Page 7: Connection In Bus Systems

    CONNECTION IN BUS SYSTEMS TWM 9000 For proper operation of Modbus in half duplex mode in single or multi-drop communication, it is recommended that a termination resistor is applied to both ends of the data line. The simplest form of termination is line-to-line resistor across the differential input.
  • Page 8 CONNECTION IN BUS SYSTEMS TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...

  • Page 9: Local Configuration

    LOCAL CONFIGURATION TWM 9000 Converter Fct. Display Description and settings C5.8.1 Slave Address Selects the Modbus address of the device. Range: 1..247 (default = 1) C5.8.2 Baud Rate Selects the baud rate of the device. Options: 1200 / 2400 / 3600 / 4800 / 9600 / 19200 (default) / 38400 / 57600 / 115200 C5.8.3...
  • Page 10 LOCAL CONFIGURATION TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...

  • Page 11: Electrical Connection

    ELECTRICAL CONNECTION TWM 9000 Terminals A and B of the converter are dependant on the options selected at order. Refer to the standard handbook of the converter for connection details. Modbus connections Terminals Description Signal A (D 0) Signal B (D 1)
  • Page 12 ELECTRICAL CONNECTION TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...

  • Page 13: Modbus Protocol

    MODBUS PROTOCOL TWM 9000 6.1 General information concerning the protocol Using RTU (Remote Terminal Unit) format, data is transmitted as 8 bit binary characters. There are no special characters to determine the start and end of a message frame. Synchronization is achieved by a minimum silent period of at least 3.5 character times before the start of each frame transmission and a maximum silent period of 1.5 character times between...

  • Page 14: Addressing

    MODBUS PROTOCOL TWM 9000 6.3 Addressing In the following tables the Modbus protocol addresses / data addresses are listed. Some systems cannot use addresses above 9999. For these systems there is the possibility to use the listed addresses but • for Input Registers omit the leading 3 of 3xxxx;...

  • Page 15: Device Identification On The Modbus Interface

    MODBUS PROTOCOL TWM 9000 6.5 Device identification on the Modbus interface The device identification is according to the category "Regular" according to the Modbus Application Protocol Specification V1.1a. Function code 43 / 14 (0x2B / 0x0E). Modbus object Id Object name / Description...

  • Page 16: Counter Controls

    MODBUS PROTOCOL TWM 9000 6.6.2 Counter controls Modbus protocol Description Settings Converter Fct. No. address 3000 Start / Stop Write start counter C3.1.8 / C3.1.9 Counter 1 Write stop counter Read counter is running Read counter is stopped 3001 Start / Stop...

  • Page 17: Input Registers

    MODBUS PROTOCOL TWM 9000 6.7 Input registers Measurement and status values are read only and can be accessed as Modbus "Input Registers". Also the result of a calibration procedure is accessed by an input register at Modbus Protocol Address 20000. The type are one or more float values.

  • Page 18: Holding Registers

    MODBUS PROTOCOL TWM 9000 6.8 Holding registers Some parameters of the device can be accessed as Modbus holding registers. Function code 03 (0x03) for "Read" operations and function code 16 (0x10) for "Write" operations. The holding registers are grouped into the following different sections.

  • Page 19: Process Input Filter Parameters

    MODBUS PROTOCOL TWM 9000 Modbus protocol Description and settings Converter Fct. Type Number of address registers 41018 C3.1.5 float preset counter 1 preset counter 1 [m preset counter 1 preset counter 1 ] or [kg] 41020 C3.2.5 float preset counter 2...
  • Page 20 MODBUS PROTOCOL TWM 9000 Modbus protocol Description and settings Converter Fct. Type Number of address registers 43004 time constant time constant [s] time constant time constant C1.2.3 float 43006 pulse width pulse width [s] pulse width pulse width C1.2.5 float...

  • Page 21: Modbus Parameters

    MODBUS PROTOCOL TWM 9000 6.8.3 Modbus parameters Modbus protocol Description and settings Converter Fct. Type Number of address registers 50000 baud rate baud rate C5.8.2 ulong baud rate baud rate 1200 / 2400 / 3600 / 4800 / 9600 / 19200...

  • Page 22: Calibration Procedures

    MODBUS PROTOCOL TWM 9000 6.10 Calibration procedures 6.10.1 Zero Flow Calibration User reduces the actual flow through the meter to User reduces the actual flow through the meter to User reduces the actual flow through the meter to User reduces the actual flow through the meter to...

  • Page 23: Coil Temperature Calibration

    MODBUS PROTOCOL TWM 9000 6.10.2 Coil Temperature Calibration Read actual Rsp,20 Read actual Rsp,20 Read actual Rsp,20 Read actual Rsp,20 Read Holding Register 43026 type float (Modbus Fct. 0x03) User checks the value with the calibration value on the type plate of the device...

  • Page 24: Conductivity Calibration

    MODBUS PROTOCOL TWM 9000 6.10.3 Conductivity Calibration User enters the actual conductivity in S/m User enters the actual conductivity in S/m User enters the actual conductivity in S/m User enters the actual conductivity in S/m This is the target for the calibration...
  • Page 25 MODBUS PROTOCOL TWM 9000 34-VF-25-22 iss.1 GLO Nov 09 US www.honeywell.com/ps...
  • Page 26 MODBUS PROTOCOL TWM 9000 www.honeywell.com/ps 34-VF-25-22 iss.1 GLO Nov 09 US...
  • Page 27 MODBUS PROTOCOL TWM 9000 34-VF-25-22 iss.1 GLO Nov 09 US www.honeywell.com/ps...
  • Page 28 Fort Washington, PA 19034 Fort Washington, PA 19034 www.honeywell.com/ps www.honeywell.com/ps www.honeywell.com/ps www.honeywell.com/ps © Honeywell International Inc. © Honeywell International Inc. © Honeywell International Inc. © Honeywell International Inc. Subject to change without notice. Subject to change without notice. Subject to change without notice.

Table of Contents