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Contents
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1 Outline ................................................................................................................................................................. 4
1-1 Features.................................................................................................................................................... 4
1-2 Function overview ..................................................................................................................................... 4
2 Transmission specification................................................................................................................................... 4
3 Connection .......................................................................................................................................................... 5
3-1 Connection method ................................................................................................................................... 5
3-2 RS485 ....................................................................................................................................................... 5
3-3 Example of connection.............................................................................................................................. 6
3-4 Example of noise prevention ..................................................................................................................... 6
4 Transmission method .......................................................................................................................................... 7
4-1 Transmission frame................................................................................................................................... 7
4-1-1 Standard frame ............................................................................................................................... 8
4-1-2 Option frame ................................................................................................................................. 11
4-1-3 Negative response frame.............................................................................................................. 13
4-2 Field description ...................................................................................................................................... 14
4-2-1Data field........................................................................................................................................ 14
4-2-2 Check sum field ............................................................................................................................ 14
4-3 Procedure on the host side ..................................................................................................................... 15
4-3-1Polling procedure........................................................................................................................... 15
4-3-2 Selecting procedure...................................................................................................................... 16
4-4 Example of communication ..................................................................................................................... 17
4-4-1 Standard frame ............................................................................................................................. 17
4-4-2 Option frame ................................................................................................................................. 17
4-5 Communication error............................................................................................................................... 18
4-5-1 Communication error code............................................................................................................ 18
4-5-2 Action at communication error ...................................................................................................... 18
5 Functions specific for communication................................................................................................................ 22
5-1 Command data........................................................................................................................................ 22
5-2 Operation command data........................................................................................................................ 22
5-3 Function data .......................................................................................................................................... 23
5-4 Monitoring data ....................................................................................................................................... 24
6 Function data format.......................................................................................................................................... 25
6-1 List of function data format...................................................................................................................... 25
6-2 Data format specification......................................................................................................................... 28
7 Changeover of communications ........................................................................................................................ 33
7-1 Changeover method for communication valid/invalid .............................................................................. 33
7-2 Link function (operation selection)........................................................................................................... 34
7-3 Coexistence of link (option) and RS485 communication ......................................................................... 34
8 Response time................................................................................................................................................... 35
8-1 Response interval time............................................................................................................................ 35
8-2 Time of receiving preparation completion................................................................................................ 35
9 Function............................................................................................................................................................. 36
10 Troubleshooting ............................................................................................................................................... 37
11 Appendix.......................................................................................................................................................... 38
11-1 Communication level converter ............................................................................................................. 38
11-2 ASCII code list....................................................................................................................................... 38
11-3 Example of a control program ............................................................................................................... 39
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