Relays And Timer/Counter Contacts In The Fp-M - Panasonic FP-M Hardware Manual

2. Relays and Timer/Counter Contacts in the FP-M

The FP-M programmable controller contains many relays and timer/counter contacts, as follows.
Internal relay (R)
This relay does
not provide an
external output
and can be used
only inside the
programmable
controller.
External output relay (Y)
This relay outputs the program execution
result of the programmable controller
and activates an external output device
such as a solenoid or motor.
Output connector
Timer contact (T)
This contact is the
output of the timer
instruction (TM). If
a timer instruction
times out, the
contact with the
same number
turns ON.
5-3. How to Program the Programmable Controller
Counter contact (C)
This contact is the
output of the
counter instruction
(CT). If a counter
instruction counts
up, the contact
with same number
turns ON.
External input relay (X)
This relay feeds signals to the
programmable controller from an external
input device such as a limit switch or
photoelectric sensor.
Input connector
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