Table Of Contents - Trane Mobrus RTU TR1 Series Instruction Manual

Table of Contents

Overview
Introduction ............................................................................................ 4
About This Manual.................................................................................. 4
Assumptions ........................................................................................... 4
What You Should Already Know ........................................................... 4
References .............................................................................................. 4
Modbus RTU Overview .......................................................................... 5
TR1 Series VFD with Modbus RTU Option Overview ............................. 5
Network Connection
Network Connection ................................................................................ 6
Drive DIP Switch Settings for Network Connection ............................... 6
Drive Parameter Settings for Modbus RTU Communication ................. 6
Network Configuration
Remote Terminal Unit .............................................................................. 7
Modbus RTU Message Structure ............................................................ 7
Memory Mapping: Coils ......................................................................... 9
Memory Mapping: Holding Registers .................................................... 11
Memory Mapping: Numbering ............................................................... 12
Conversion Index and Data Type............................................................. 12
Communication Examples
Standard Modbus Functions .................................................................. 13
Example 1 Start the Drive and Give It a Reference via Modbus RTU .. 14
Example 2 Give the Drive a Reference via Modbus RTU ..................... 15
Example 3 Read Basic Drive Status Information ................................. 16
Example 4 Give the Drive a Ramp to Stop Command ......................... 18
Example 5 Give the Drive a Coast to Stop Command ......................... 19
Example 6 Set How the Drive Stores Parameter Values ...................... 20
Example 7 Write a Parameter Value from a List of Choices ................ 21
Example 8 Write a 16 Bit Parameter ...................................................... 22
Example 9 Write a 32 Bit Parameter ...................................................... 23
Example 10 Read a 32 Bit Parameter .................................................... 24
Example 11 Read Indexed Parameter and Read 8 Bit Parameter ....... 25
Example 12 Write a Text String .............................................................. 27
Example 13 Read a Text String .............................................................. 28
Exception Codes ..................................................................................... 29
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