
Contents
1 Safety
3
Safety Note 3
Safety Regulations 3
Warning against Unintended Start 4
2 Introduction
5
Introduction 5
About this Manual 5
Assumptions 5
Background Knowledge 5
Modbus Conformance 6
Abbreviations 6
3 How to Install
7
The Modbus TCP Option 7
How to Install Option in Frequency Converter 8
LED Behaviour 9
Topology 10
Network 11
Recommended Design Rules 12
EMC Precautions 13
4 How to Configure
15
IP Settings 15
Ethernet Link Parameters 16
Configuring the Scanner 17
IP traffic 21
5 How to Control
23
How to Control the Frequency Converter 23
Function Codes Supported by Modbus TCP 23
Modbus TCP Message Framing Structure 23
Function Code 23
Data Field 23
CRC Check Field 23
Holding Register Addressing 24
Examples 26
Control Profile 27
GE Drive Control Profile 28
Status Word according to Drive Profile (STW) 30
Reference Handling 31
Modbus TCP
1
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