3
4 Input signals ................................................................................................................................................................ 66
4-1 Operation control ................................................................................................................................................................................. 66
4-2 Position coordinate management ..................................................................................................................................................72
4-3 Management of driver ........................................................................................................................................................................ 73
5 Output signals ............................................................................................................................................................74
5-1 Management of driver ........................................................................................................................................................................ 74
5-2 Management of operation ................................................................................................................................................................ 75
5-3 Response output ................................................................................................................................................................................... 78
6 Timing chart ................................................................................................................................................................79
3 Method of control via Modbus RTU (RS-485 communication)
1 Specication of Modbus RTU ................................................................................................................................... 82
1-1 Communication mode ........................................................................................................................................................................82
1-2 Communication timing ...................................................................................................................................................................... 82
2 Message structure ...................................................................................................................................................... 84
2-1 Query ......................................................................................................................................................................................................... 84
2-2 Response .................................................................................................................................................................................................. 86
3 Function codes ............................................................................................................................................................88
3-1 Reading from a holding register(s) (03h) ..................................................................................................................................... 88
3-2 Writing to a holding register (06h) ................................................................................................................................................. 89
3-3 Diagnosis (08h) ...................................................................................................................................................................................... 90
3-4 Writing to multiple holding registers (10h) ................................................................................................................................. 91
3-5 Read/write of multiple holding registers (17h) ..........................................................................................................................92
4 Example of data setting in Modbus RTU mode ....................................................................................................94
4-1 Remote I/O command......................................................................................................................................................................... 94
4-2 Positioning operation.......................................................................................................................................................................... 96
4-3 Continuous operation .........................................................................................................................................................................98
4-4 Return-to-home operation ..............................................................................................................................................................100
5 Data setting method................................................................................................................................................102
5-1 Overview of setting method...........................................................................................................................................................102
5-2 Direct reference ...................................................................................................................................................................................102
5-3 Indirect reference ................................................................................................................................................................................103
6 Direct data operation ..............................................................................................................................................109
6-1 Overview of direct data operation ...............................................................................................................................................109
6-2 Commands required for direct data operation ........................................................................................................................111
7 Group send ................................................................................................................................................................115
8 RS-485 communication monitor ...........................................................................................................................117
9 Timing chart ..............................................................................................................................................................118
9-1 Communication start ........................................................................................................................................................................118
9-2 Start of operation ................................................................................................................................................................................118
9-3 Operation stop, speed change ....................................................................................................................................................... 118
9-4 General signals.....................................................................................................................................................................................118
9-5 Conguration .......................................................................................................................................................................................119