LG Industrial Systems GLOFA GM6 Series, Руководство пользователя

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Chapter 13. Dedicated Cnet communication for GM6
13 - 16
(5) Example of use
This example supposes when 2 DOUBLE WORDs from %MD0 of station No.10 are read. Also it is supposed
that the following data are entered in %MD0 and %MD1 :
%MD0 = H12345678
%MD1 = H9ABCDEF0
(Computer request format)
Format
name
Header
Station
No.
Command
Command
type
Variable
length
Variable
name
Number
of
data
Tail BCC
Frame
(Ex.)
ENQ H0A R(r) SB H04 %MD0 H02 EOT BCC
ASCII
value
H05 H3041 H52(72) H5342 H3034 H254D4430 H3032 H04
(For PLC ACK response after execution of command)
Format
name
Header
Station
No.
Command
Command
type
Number
of
blocks
Number
of
data
Data Tail BCC
Frame
(Ex.)
ACK H0A R(r) SB
H01
H08 12345678 9ABCDEF0 ETX BCC
ASCII
value
H06 H3041 H52(72) H5342
H3031
H3038
H313233343536373839
41424344454630
03
(For PLC NAK response after execution of command)
Format
name
Header
Station
No.
Command Command type Error code Tail BCC
Frame
(Ex.)
NAK H0A R(r) SB Error code(2) ETX BCC
ASCII
value
H15 H3041 H52(72) H5342 Error code(4) H03