Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

If you specify upward or downward differentiation, the operation depends on the following: the value of
the input for the last execution and the current value of the input. This is shown below.
Instruction
Upward differentiation
Set
Downward differentia-
tion
Upward differentiation
Reset
Downward differentia-
tion
The following figure shows a programming example and timing chart.
LD
A
abc
S
B
abc
R
LD
A
abc
PS
B
abc
PR
LD
A
abc
NS
B
abc
NR

NY-series Instructions Reference Manual (W560)

Differentiation speci-
Value of input at last execution and current value
fication
FALSE at the last execution → Currently TRUE
Other than the above.
TRUE at the last execution → Currently FALSE
Other than the above.
FALSE at the last execution → Currently TRUE
Other than the above.
TRUE at the last execution → Currently FALSE
Other than the above.
2 Instruction Descriptions
TRUE
A
FALSE
TRUE
B
FALSE
TRUE
abc
FALSE
TRUE
A
FALSE
TRUE
B
FALSE
TRUE
abc
FALSE
TRUE
A
FALSE
TRUE
B
FALSE
TRUE
abc
FALSE
Output value
TRUE
Not changed.
TRUE
Not changed.
FALSE
Not changed.
FALSE
2
Not changed.
2-57