Panasonic FP7 Series - P Pulse Relay

2.5.8 P Pulse relay
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How pulse relay (P) works
● Pulse relay is a relay that is only turned ON for one scan. Its ON or OFF state is not
externally output. It only operates within a program.
● Turns ON only when Leading Edge Detection Out (OT↑) or Trailing Edge Detection Out
(OT↓) instructions are executed.
● When used as the trigger, the pulse relay only operates for one scan when the leading edge
or trailing edge is detected.
<Example 1> Differential execution at the leading edge for input X100
X100
P0
P0
R100
X100
P0
R100
Single scan
<Example 2> Differential execution at the trailing edge for input X101
P1
R101
X101
P1
X101
P1
R101
Single scan
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Usage restrictions
● Pulse relays are cleared when the power is turned off.
2.5 Explanations about Relays
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