ABB RS485 Modbus adapter User Manual
For rvt controller
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Also See for RS485 Modbus adapter:
- Installation and startup manual (24 pages) ,
- Troubleshooting manuallines (5 pages)
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Table of Contents
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Summary of Contents for ABB RS485 Modbus adapter
- Page 1 — INSTRUCTION MANUAL RS485 Modbus adapter for RVT controller User guide...
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Page 2: Table Of Contents
— Table of contents 1 Introduction ............................... 3 2 Overview ................................3 2.1 Introduction to Modbus ..........................3 2.2 Modbus adapter mounting ........................... 3 2.3 Modbus adapter wiring ..........................4 2.4 Modbus adapter terminal switch ......................... 5 2.5 RVT access level .............................. 5 2.6 RVT parameter settings for Modbus communication ................ -
Page 3: Introduction
— 1 Introduction This guide is designed to help you quickly install the RVT Modbus adapter and to give an overview of the commissioning process. This guide makes reference to more detailed documents made for installers, commissioning people and network managers who are familiar with Modbus protocol and related matters. —... -
Page 4: Modbus Adapter Wiring
RVT RS485 Modbus adapter To be connected to RVT RS232 input (optical transceiver) To be connected to RVT power supply connector Please note that if the RVT is already installed and connected, the RVT power supply has to be switched OFF during the Modbus adapter connection. [Detailed information on RVT mounting is available in “RVT –... -
Page 5: Modbus Adapter Terminal Switch
Depending on the position of the RVT-Modbus in the Modbus line topology, the resistor termination switch must be switched ON or OFF. If the RS485 Modbus adapter is one of the two ending station on the communication line, the resistor termination switch must be switched in the ON position. -
Page 6: Rvt Parameter Settings For Modbus Communication
The editable parameters are grey Access to the Commissioning menu will be denied. Access to the Change mode menu will be allowed. The setting values may be consulted. No modification can be made to the settings In SET mode, the RVT parameters can be set manually and automatic and guided commissioning can be performed. - Page 7 All RVT parameters as well as all the RVT measurements are accessible through Modbus. RS485 User guide ç Overview - 7...
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Page 8: Modbus Data Table
Slave address: to adjust the address of the Modbus/RTU slave. The Modbus master will refer to this address for each query / answer transaction with this RVT. Baud rate: to adjust the communication speed (bits/second). Parity: to set the parity checking. Stop bit: to set the number of stop bit(s). -
Page 9: Appendix: References
— 3 Appendix: references Installation and operating instructions RVT RVT communication with Modbus RTU, Modbus TCP and PQ Link protocols Installation and start-up guide RS485 Modbus Adapter. RS485 User guide ç Appendix - 9... - Page 10 Avenue Centrale 10 notice. With regard to purchase orders, the agreed Z.I. Jumet particulars shall prevail. ABB does not accept any B-6040 Charleroi, Belgium responsibility whatsoever for potential errors or Phone: +32(0) 71 250 811 possible lack of information in this document.