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TABLE OF CONTENTS Cont’d.
4.0 MODBUS PROTOCOL ................................................ 33
4.1 Introduction ....................................................... 33
4.2 MODBUS RTU Message Framing .................... 33
4.3 MODBUS RTU Message Content ..................... 33
4.4 MODBUS Function and Exception Codes ......... 34
4.5 Supported MODBUS Commands ...................... 35
5.0 INSTALLATION ........................................................... 38
5.1 Setting Modbus Address ................................... 38
5.2 Modbus RS-232C Link (-S093) ......................... 42
5.3 Modbus RS-485 Network (-S103) ..................... 42
ML0002
November 2009
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Copyright 2009
Bitronics, LLC.