7300CV MODBUS COMMUNICATION PROTOCOL
File No. :PC-CV-08
Version : 1.A
Page :
22/34
6.4.6 Coil status write
ASCII Mode
PC
Æ
INV(PLC) INV(PLC
Æ
PC
3AH
STX
3AH
STX
30H
30H
31H
Address
31H
Address
30H
30H
36H
Function Code
36H
Function Code
30H
30H
32H
32H
46H
46H
43H
*Register
Number
43H
*Register Number
*Data to be written to
*Data to be written to
*Data to be written to
*Data to be written to
*Data to be written to
*Data to be written to
*Data to be written to
16-Bit data
comprising of 4
ASCII codes
*Data to be written to
16-Bit data
comprising of 4
ASCII codes
?
?
?
CHECK SUM
?
CHECK SUM
0DH
END
0DH
END
0AH
END
0AH
END
RTU Mode
01H Address
01H Address
06H Function
Code
06H Function
Code
02H
02H
FCH
* Register Code
FCH
* Register Code
*Data to be written to
*Data to be written to
*Data to be written to
16-Bit data
*Data to be written to
16-Bit data
?
CRC High Byte
?
CRC High Byte
?
CRC Low Byte
?
CRC Low Byte
Note:
Write to Coil Start
code
INPUT 02FDH
TIMER 02FEH
COUNTER 02FFH
AUXI COIL
0300H
CONTROL
COIL
0301H
ANALOG 0302H
ENCODER 0302H
OUTPUT 0303H
