Sanken SVCO6, Инструкция по эксплуатации, Страница: 285 / 326

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7
7-4 Serial Communication Function
3) Message from inverter to computer (RTU) (abnormal response)
Item Name Description
①
IN Inverter number 0: Broadcast mode
1-247: termination inverter number
Data format is fixed as 1byte
Inverter number is the data set by function code F4006
Example: inverter number 2
① →‗02‘
②
OP Command code Computer-sent command code +80H;
Top digit 1 means abnormal.
③
DT Data Abnormality response data format is fixed as 1-byte
For alarm contents, see list of alarms for dedicated protocol.
④
SUM Checksum CRC check (2-byte fixed)
⑬
OP category
In OP in RTU format, 03H: register reading
,
06H: One register writing and 10H: Continuous register writing are
existed. The followings are descriptions for registers used in batch operation.
The address of a register can choose two kinds of addresses by a function code (F4103:Modbus register address
switching).
1
）
Register reading
·
OP=03H
· During register reading, the data listed in the following table can be read.
Up to 5 data can be read simultaneously.
For setting errors of function codes, please refer to list of error codes.