Delta AH500 Programming Manual page 201

AH5 00 Prog ram m ing M an ua l
Instruction code
PN
Symbol:
Explanation:
1. When the value in the accumulative register turns from 1 to 0, the instruction PN keeps the
value 1 in the accumulative register for a scan cycle. After the second scan cycle is finished,
the value in the accumulative register changes to 0.
2. Please use the instruction FB_ PN in the function block.
Example:
Instruction:
LD M0
AND M1
PN
OUT Y0.0
Timing diagram:
M0
M1
Y0 .0
5 - 2 2
Operand
-
Operation:：
Contact A of M0 is loaded.
Contact A of M1 is connected in series.
The circuit is falling edge-triggered.
The coil Y0.0 is driven.
One scan cycle
Function
The circuit is falling edge-triggered.
One scan cycle