LG Industrial Systems GLOFA GM6 Series, Руководство пользователя

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Chapter 13. Dedicated Cnet communication for GM6
13 - 28
(5) Example of use
This supposes that reading the variable registered with register No.’1’ in station No.’1’ is carried out. It is also
supposed that the one registered is a named variable reading, the number of blocks is 1, and the data type is
DINT.
(Computer request format)
Format
name
Header Station No. Command Register No. Tail Frame check
Frame(Ex.) ENQ H01 Y(y) H01 EOT BCC
ASCII value H05 H3031 H59(79) H3031 H04
(For PLC ACK response after execution of command)
Format
name
Header
Station
No.
Command
Register
No.
Number of
blocks
Number of
data
Data Tail
Frame
check
Frame
(Ex.)
ACK H01 Y(y) H01 H01 H04 H23422339 ETX BCC
ASCII
value
H06 H3031 H59(79) H3031 H3031 H3034
H3233343232
333339
H03
(For PLC NAK response after execution of command)
Format
name
Header Station No. Command Register No. Error code Tail Frame check
Frame(Ex.) NAK H01 Y(y) H01 Error code(2) ETX BCC
ASCII value H15 H3031 H59(79) H3031 Error code(4) H03