Chapter8 Communication Function
8-30
(5) Example
This example supposes that the status of K7 Base Unit of station No. 1 is read.
①
Computer request Format(PC
→
K7 Base Unit)
Format name Header Station No. Command Command type
Tail Frame check
Frame (Example)
ENQ H01 R(r) ST EOT BCC
ASCII value H05 H3031 H52(72) H5354 H04
②
For ACK response after execution of command (PC
←
K7 Base Unit)
Format name Header Station No. Command Command type
Status data Tail Frame check
Frame (Example)
ACK H01 R(r) ST
See status data
Format
ETX BCC
ASCII value H06 H3031 H52(72) H5354 H03
③
For NAK response after execution of command (PC
←
K7 Base Unit)
Format name Header Station No. Command Command type
Error code Tail Frame check
Frame (Example)
NAK H01 R(r) ST
Error code
(2) ETX BCC
ASCII value H15 H3031 H52(72) H5354
Error code
(4) H03