Panasonic FP Series Programming Manual page 723

Data transfer via communication ports
Setting the MCU's communication ports during RUN mode via the output (Y) flags
16 I/Os for Y are allocated. I/O numbers are determined depending on the installation location and
the I/O allocations of the other units.
Output signal
COM 1 COM 2
Y10-Y17 Y10-Y17
Y18 Y19
Y1A-Y1D Y1A-Y1D Undefined
Y1E Y1F
NOTE
The channel reset can be automatically performed by one of the following (in these cases, the
reset done signal by XE/YF does not turn on):
Setting/changing communication parameters using the instruction F159_MWRT_PARA
-
(see page 719).
722
Name Description (0: OFF, 1: ON)
Undefined Default setting: 0 (Do not change)
RTS signal The transmission from the devices
output communicating with the MCU can be
controlled by turning this output on.
Permit transmission from communicating
devices: 0
Prohibit the transmission from
communicating devices: 1
The CTS signal sent from the
communicating devices can be monitored
via X8 and X9.
Default setting: 0 (Do not change)
Request to Communication channels can be reset by
reset CH turning on Y1E or Y1F.
No request to reset: 0
Request to reset: 1
After 1 is output and the completion of the
reset is confirmed by XE/XF, return to 0.
The reset is performed only once when this
signal rises.
During reset, the following operations are
performed:
1: Transmission discontinued
2: Reception discontinued
3: Receive buffer cleared
4: Communication parameters reset
5: Error information cleared (for errors
which can be cleared)
This function can be used to delete
unnecessarily received data or to clear
errors before starting normal reception.
Effective
operation
mode
None
Effective only
when setting the
RS/CS to be
valid and using
the
RS232C
communication
cassette.
None
Program
controlled
communication