11-22
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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