Contents
1.
2.
Data transmission specifications ................................................................................................................................ 4
3.
Communication protocol............................................................................................................................................. 5
4.
TOSHIBA Inverter Protocol......................................................................................................................................... 6
4.1. Data transmission format ................................................................................................................................... 7
4.2. Commands....................................................................................................................................................... 17
4.3. Transmission errors ......................................................................................................................................... 20
5.
MODBUS-RTU protocol............................................................................................................................................ 29
5.1.1. Read command (03)............................................................................................................................... 30
5.1.2. Write command (06)............................................................................................................................... 31
5.2. CRC Generation............................................................................................................................................... 32
5.3. Error codes....................................................................................................................................................... 32
6.
Inter-drive communication ........................................................................................................................................ 33
7.
Communication parameters ..................................................................................................................................... 40
7.2. Inverter number()................................................................................................................................. 42
7.5. Free notes() ......................................................................................................................................... 44
8.
9.
Parameter data......................................................................................................................................................... 62
Appendix 1 Table of data codes........................................................................................................................................ 67
Appendix 2 Response time ............................................................................................................................................... 68
Appendix 4 Troubleshooting ............................................................................................................................................. 70
2
E6581315