List Of Special Relays (Com Communication) - Panasonic FP0H User Manual

10.3 List of Special Relays (COM Communication)

Only special relays related to communication by COM0 port of the main control unit and by
COM port of a communication cassette are listed below.
WR900 (specification in word units)
Relay No. Name
R900E
COM0 port communication error
(R9130)
(Note 1): The same function is also allocated to the special internal relay indicated in brackets.
WR903 (specification in word units)
Relay No. Name
R9030
Reserved for system
to R9031
R9032
COM1 port operation mode flag
(R9139)
R9033 Print instruction active flag
Program edit flag during RUN
R9034
mode
R9035
Reserved for system
to R9036
R9037 COM1 port communication error
(R9138) flag
Reception done flag in COM1
R9038
port general-purpose
(R913A)
communication
Transmission done flag in
R9039
COM1 port general-purpose
(R913B)
communication
R903A
Reserved for system
to R903D
Reception done flag in COM0
R903E
port general-purpose
(R9132)
communication
Transmission done flag in
R903F
COM0 port general-purpose
(R9133)
communication
(Note 1): R9030 to R903F changes even while a scan is in progress. The same function is also allocated to the
special internal relay indicated in brackets.
10.3 List of Special Relays (COM Communication)
Description
Turns ON when a communication error is detected during the
use of COM0 port
Description
-
Turns ON when the general-purpose communication function
is used.
Turns OFF when functions other than general-purpose
communication are used.
OFF: Instruction not active
ON: Instruction in progress
A special internal relay that only turns on the first single scan
following the completion of rewriting during RUN.
-
Turns ON when a transmission error occurs during data
communication.
Turns OFF when transmission is requested using an F159
(MTRN) instruction.
Turns ON when the terminator (end code) is received during
general-purpose communication
Turns ON when transmission is done during general-purpose
communication.
Turns OFF when transmission is requested during general-
purpose communication.
-
Turns ON when the terminator (end code) is received during
general-purpose communication
Turns ON when transmission is done during general-purpose
communication.
Turns OFF when transmission is requested during general-
purpose communication.
10-11