12-37
Name Boolean Symbol Description
Steps
(*1)
Leading
edge AND
AN↑ Connects a Form A (normally open) contact serially only
for one scan when the leading edge of the trigger is
detected.
2
Trailing edge
AND
AN↓ Connects a Form A (normally open) contact serially only
for one scan when the trailing edge of the trigger is
detected.
2
Leading
edge OR
OR↑ Connects a Form A (normally open) contact in parallel only
for one scan when the leading edge of the trigger is
detected.
2
Trailing edge
OR
OR↓ Connects a Form A (normally open) contact in parallel only
for one scan when the trailing edge of the trigger is
detected.
2
Leading
edge out
OT↑ Outputs the operated result to the specified output only for
one scan when leading edge of the trigger is detected. (for
pulse relay)
2
Trailing edge
out
OT↓ Outputs the operated result to the specified output only for
one scan when trailing edge of the trigger is detected. (for
pulse relay)
2
Alternative
out
ALT Inverts the output condition (on/off) each time the leading
edge of the trigger is detected.
3
AND stack ANS Connects the multiple instruction blocks serially. 1
OR stack ORS Connects the multiple instruction blocks in parallel. 1
Push stack PSHS Stores the operated result up to this instruction. 1
Read stack RDS Reads the operated result stored by the PSHS instruction. 1
Pop stack POPS Reads and clears the operated result stored by the PSHS
instruction
1
Leading
edge
differential
DF Turns on the contact for only one scan when the leading
edge of the trigger is detected.
1
Trailing edge
differential
DF/ Turns on the contact for only one scan when the trailing
edge of the trigger is detected.
1
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