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....................................................................................................................... 5
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 ..............................................................................................................8
3.3 I/O Connection ............................................................................................................................................... 8
3.3.1 Digital Inputs ....................................................................................................................................... 8
3.3.2 Digital Output ......................................................................................................................................9
4 Modbus RTU ..................................................................................................................................................... 9
4.1 Communication Specifications .......................................................................................................................9
4.2 Modbus Function Codes (FC) .......................................................................................................................10
4.2.1 Read Holding Registers FC= 03 ..........................................................................................................10
4.2.2 Preset Single Register FC= 06............................................................................................................11
4.2.3 Preset Multiple Registers FC= 10 ...................................................................................................... 12
4.3 Modbus & PR Parameters ............................................................................................................................ 13
4.3.1 Basic Parameters...............................................................................................................................13
4.3.2 Input and Output Parameters...........................................................................................................16
4.3.3 Smooth Filter Time Setting for Digital Inputs ................................................................................... 16
4.3.4 Status Monitoring Parameters ..........................................................................................................18
4.3.5 Control Word and Status Word .........................................................................................................18
4.4 Error Codes and Troubleshooting ................................................................................................................ 19
4.4.1 Communication Error Codes .............................................................................................................19
