11.2
MEWTOCOL-COM Format
11-7
11.2.2 MEWTOCOL-COM Response Format
Response message
After PLC receives a command, it returns the processing result.
(1) Header (start code)
A “%” (ASCII code: H25) or “<” (ASCII code: H3C) must be at the beginning of a message.
The response must start with the same header that was at the beginning of the command.
(2) Station no.
This is the station no. of the PLC that processed the command.
(3) 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.
(4) Check code
This is a BCC (block check code) for error detection using horizontal parity.
The BCC starts from the header and checks each character in sequence, using the
exclusive OR operation, and converts the final result.
(5) Terminator (end code)
The message should end with "CR" (ASCII code: H0D).
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Summary of Contents for AFP7CCM1
Page 1: ...Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Page 45: ...3 I O Allocation Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Page 57: ...6 PLC Link Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
