Table of Content
1 Introduction..............................................................................................................................................................1
1.1 Product Introduction....................................................................................................................................... 1
1.2 Features...........................................................................................................................................................1
1.3 Application Scenarios..................................................................................................................................... 1
1.3.1 Hands-on Tuning................................................................................................................................. 1
1.3.2 Practical Application Scenarios...........................................................................................................1
2 Specifications............................................................................................................................................................3
2.1 Electrical and Operating Specifications......................................................................................................... 3
2.2 Storage and Installation Conditions................................................................................................................3
2.2.1 Storage condition.................................................................................................................................3
2.2.2 Operating ambience conditions........................................................................................................... 3
2.3 Dimensions..................................................................................................................................................... 3
3 Interface and Connection........................................................................................................................................4
3.1 Interface.......................................................................................................................................................... 4
3.1.1 Connectors Definition......................................................................................................................... 4
3.1.2 CN1 &CN2 Input Power Connector................................................................................................... 5
3.1.2 CN3-RS485 Communication Connector.............................................................................................5
3.1.3 CN4-RS232 Tuning Port..................................................................................................................... 6
3.1.4 DIP Switches........................................................................................................................................6
3.2 Wiring Instructions......................................................................................................................................... 7
3.2.1 Power Supply Cable............................................................................................................................ 8
3.2.2 I/O Signal Cable.................................................................................................................................. 8
3.2.3 RS485 Communication Cable............................................................................................................. 9
3.3 I/O Connection................................................................................................................................................9
3.3.1 Digital Inputs....................................................................................................................................... 9
3.3.2 Digital Output...................................................................................................................................... 9
4 Modbus RTU.......................................................................................................................................................... 10
4.1 Communication Specifications.....................................................................................................................10
4.2 Modbus Function Codes (FC)...................................................................................................................... 10
4.2.1 Read Holding Registers FC= 03........................................................................................................11
4.2.2 Preset Single Register FC= 06...........................................................................................................12
4.2.3 Preset Multiple Registers FC= 10..................................................................................................... 13
4.3 Modbus & PR Parameters............................................................................................................................ 14
4.3.1 Basic Parameters................................................................................................................................14
4.3.2 Input and Output Parameters.............................................................................................................16
4.3.3 Smooth Filter Time Setting for Digital Inputs.................................................................................. 17
4.3.4 Status Monitoring Parameters........................................................................................................... 18
4.3.5 Control Word and Status Word..........................................................................................................19
4.4 Error Codes and Troubleshooting.................................................................................................................19
4.4.1 Communication Error Codes.............................................................................................................19
