TECO 7300CV - Page 17

7300CV MODBUS COMMUNICATION PROTOCOL
File No. :PC-CV-08
Version : 1.A
Page :
17/34
6.4 Function block write
6.4.1 Timer function block write
ASCII Mode
PC ÆINV(PLC) INV(PLC) ÆPC
3AH STX 3AH STX
30H 30H
31H
Address
31H
Address
31H 31H
30H
Function Code
30H
Function Code
30H 30H
32H 32H
36H 36H
34H
*Register Number
34H
*Register
Number
30H 30H
30H 30H
30H 30H
34H
Data Length
(Byte)
34H
Data Length
30H ?
38H
DATA Number
?
CHECK
SUM
0DH END
0AH END
*Send out the data from
264H~267H, total 16 Byte
?
?
CHECK SUM
0DH END
0AH END
RTU Mode
PC Æ INV(PLC) INV(PLC)ÆPC
01H Address 01H Address
10H Function Code 10H Function Code
02H 02H
64H
* Register Code
64H
* Register Code
00H 00H
04H
Data Length
04H
Data Length
08H
DATA Number
? CRC High Byte
? CRC Low Byte*Send out the data from 264H~267H,
total 8 Byte
? CRC High Byte
? CRC Low Byte