Relays, Memory Areas and Constants
1-40
Usage restrictions
Pulse relays are cleared when the power is turned off.
A pulse relay can only be used once in a program as an output destination for an OT↑
or OT↓ instruction (double output is prohibited).
There is no limitation to the number of times a pulse relay can used as a contact.
A pulse relay cannot be specified as an output destination for an OT, KP, SET, RST or
ALT instruction.
A word unit pulse relay (WP) cannot be specified as a storage location for a high-level
instruction.