Panasonic FP2 - Manual (Page 11)

Functions of Computer Communication Unit FP2−CCU
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1.2 Unit Operation
Note
This unit does not support extension header (<). Use the Multi
Communication Unit.
MEWTOCOL communication protocol for FP series are generally configured
as shown below.
Tip
Command format (Example showing command for reading data)
% 0 0 0 0 0 0 0 0 0 0 1
*
1
End code
Start code
Destination
Indicates command
Type of command
BCC (Block Check Code)
Data specification
*RD stands for “Read Data”.
# R D CR D
Response format (Example of response to data reading command)
% 0 0 5 0 0 6 2 1
End code Start code
Source
Indicates response
Type of command
BCC (Block Check Code)
Content of data that was read 1
Content of data that was read 2
$ R D CR
(lower) (higher)
0 A 0 0
(lower) (higher)
*
*D 00000 00001 indicates data registers DT0 to DT1.