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11.3.2 MEWTOCOL7 Response Format
Response message
(1) Header (start code)
>
@
E
Data (normal status: read data, abnormal
status: error code)
(1) Header (start code)
A ">" (ASCII code: H3E) must be at the beginning of a message.
The response must start with the same header (start code).
(2) Station no.
This is the station no. of the PLC that processed the command.
(3) Frame No.
This is the frame number where the command was processed.
(4) Text
The content of this varies depending on the type of command. If the processing is not
completed successfully, an error code will be stored here, so that the content of the error can
be checked.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
(2) Station no. of the receiver
(3) Frame No.
E
E
0
0
Response code (normal status: $, abnormal status: !)
11.3 MEWTOCOL7-COM Format
(4) Text (to be specified in accordance
with the type of command)
$
0
0
M
M
Command name (data area read)
Command code value
(5) Check code
(16bit CRC (CCITT) )
R
D
C
R
(6)
Terminator
(end code)
11-11
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