LS Industrial Systems MASTER-K80S, Руководство пользователя

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Chapter8 Communication Function
8-23
(4) Response Format (NAK response)
Format name Header Station No. Command
Registration
No.
Error code
(Hex 2Byte)
Tail
Frame
check
Frame (Example) ACK H10 X(x) H09 H1132 ETX BCC
ASCII value H06 H3130 H58(78) H3039 H31313332 H03
Item Explanation
BCC
When command is one of lower case(r), only one lower byte of the value resulted by adding
1 Byte each to ASCII values from NAK to ETX is converted into ASCII and added to BCC,
and sent.
Error code
Hex and 2 bytes(ASCII code, 4 bytes) indicate error type. For the details, see 8.1.8 Error
codes.
(5) Example
This example supposes that device M000 of station NO. 1 is monitor registered.
①
Computer request Format (PC
→
MK80S Base Unit)
Registration Format
Format name Header Station No. Command
Registration
No.
R##
Number of
blocks
Device length Device name
Tail Frame check
Frame (Example) ENQ H01 x H01 RSS H01 H06 %MW000 EOT BCC
ASCII value H05 H3031 H78 H3031 H525353 H3031 H3036
H255457
303030
H04
②
For ACK response after execution of command(PC
←
MK80S Base Unit)
Format name Header Station No. Command
Registration No. Tail Frame check
Frame (Example) ACK H01 x H01 ETX BCC
ASCII value H06 H3031 H78 H3031 H03
③
For NAK response after execution of command (PC
←
MK80S Base Unit)
Format name Header Station No. Command
Registration No. Error code Tail Frame check
Frame (Example) NAK H01 x H01 Error code (2) ETX BCC
ASCII value H15 H3031 H78 H3031 Error code (4) H03