Panasonic FP0R User Manual page 110

Communication
N o t e
Response message
110
Command name
I
e.g. RC, read contact area
Command code
O
# (16#23) indicates that this is a command
If there are large numbers of characters to be written, they may be
divided and sent as several commands. If there is a large number of
characters in the value that was loaded, they may be divided and
several responses sent.
The slave that received the command in the example above sends the
processing results to the computer.
Start code
Q
A "%" (ASCII code: 16#25) or "<" (ASCII code: 16#3C) must be at the begin-
ning of a message. The response must start with the same start code as the
command.
Station number
W
The station number of the slave that processed the command is stored here.
Text
E
The content of this varies depending on the type of command. The value should
be read based on the content. If the processing is not completed successfully,
an error code will be stored here, so that the content of the error can be
checked.
Check code
R
Hexadecimal block check code (BCC) for error detection using horizontal parity.
The BCC starts from the header and checks each character in sequence, using
the exclusive OR operation, and replaces the final result with character text.
End code
T
There is always a "
Data
Y
For a read command, the data read is stored here.
" (ASCII code: 16#0D) at the end of the message.
C
R
FP0R User's Manual