LSIS Master-K K200S - Page 165

Chapter 13 RS-232C function of K200S MASTER-K
13-19
5) Example
Write hAA15 and h056F to the P000 and P001 of station number h01. (Without BCC)
① Request format (External device à PLC)
Format
name
Header
Station
number
Main
instruction
Instruction
type
Length of
device
definition
Device
definition
Number
of data
Data Tail
Frame
example
ENQ h01 W SB h06 %M W100 h02 h11112222 EOT
ASCII
value
h05 h3031 h57 h5342 h3036
h254D57
313030
h3032
h31313131
32323232
h04
② Response format (PLC à External device : ACK response)
Format
name
Header Station number Main instruction Instruction type Tail
Frame
example
ACK h01 W SB EXT
ASCII
value
h06 h3031 h57 h5342 h03
③ Response format (PLC à External device : NAK response)
Format
name
Header
Station
number
Main
instruction
Instruction
type
Error code
(Hex 2 byte)
Tail
Frame
example
NAK h01 W SB h2232 ETX
ASCII value h15 h3031 h57 h5342 h32323332 h03