Message From Computer To Inverter (Rtu) - Sanken SVCO6 Instruction Manual

The followings are examples of messages (computer → inverter, inverter → computer (normal & abnormal response)).

1) Message from computer to inverter (RTU)

Item
①
IN Inverter number
②
OP Command code
③
DT Data
④
SUM Checksum
Name
0: broadcast mode
1-247: termination inverter number
Data format is fixed as 1byte
Inverter number, the data set by function code F4006
Example: inverter number 2 ①→‗02'
Command code (1byte fixed)(03H, 06H, 10H)
Example ①: Data content read from register(03H)
1） Register number (2-byte fixed)
Example: register number 07D0H
⑪→‗07'
2） Number of registers (2-byte fixed)
Example: two registers
⑬→‗00'
·Data(DT) (4byte)
(1)
Example ② The contents of data when writing data in one register (06H)
1) Register number (2-byte fixed)
Example: register number 03E8H
⑪→‗03'
2) Data content (2-byte fixed)
Example: Setting register 0001H
(3)→‗00'
·Data(DT) (4byte)
(1)
Example ③ Data content written into the register (10H)
1） Register number (2-byte fixed)
Example: register number 03E8H
⑪→‗03'
2）Setting of number of registers (2-byte fixed)
Example: setting register
⑬→‗00'
3）Number of data (1-byte fixed)
Example: setting data
⑮→‗02'
4）Data content (variable, byte = number of data (5))
Example: Setting register 0001H
⑯→‗00'
·Data(DT) (7byte)
(1)
CRC check (2 byte fixed)
7-4
Description
⑫→‗D0'
⑭→‗02'
(2) (3) (4)
⑫→‗E8'
(4)→‗01'
(2) (3) (4)
⑫→‗E8'
⑭→‗01'
⑰→‗01'
(2) (3) (4) (5) (6)
- 281 -
Serial Communication Function
(7)