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