IMO Precision Controls K7 Series User Manual page 150

Chapter8 Communication Function
(5) Example
This example supposes that registered device No. 1 of station No. 1 is read. and BCC value is checked.
And it is supposed that device M000 is registered and the number of blocks is 1.
x Computer request Format(PC → K7 Base Unit)
Format name Header
Frame (Example) ENQ
ASCII value H05
y For ACK response after execution of command (PC ← K7 Base Unit)
Format name Header Station No.
Frame (Example) ACK
ASCII value H06 H3031
z For NAK response after execution of command (PC ← K7 Base Unit)
Format name Header
Frame (Example) NAK
ASCII value H15
Station No. Command
H01 y
H3031 H79
Registration
Command
No.
H01 y H01
H79 H3031
Registration No.
Station No. Command
H01 y
H3031 H79
8-27
Registration No.
H01
H3031
Number of
Number of Blocks
data
H01 H04 H23422339
H3233343232
H3031 H3034
333339
Error code
H01 Error code (2)
H3031 Error code (4)
Tail Frame check
EOT BCC
H04
Frame
Data Tail
check
ETX BCC
H03
Tail Frame check
ETX BCC
H03