Nj-Series Instructions Reference Manual (W502 - Omron NJ501-1500 Reference Manual

F_TRIG (Down)
When the master control is reset, the execution condition changes to FALSE. If the previous execution
condition was TRUE, then the input downward differentiation condition is met. However, the value of the
output from the F_TRIG (Down) instruction during the master control reset is forced to change to
FALSE, so the output value changes to FALSE.
MC_ON
In
UINT#1
MCNo
F_TRIG_instance
A
Clk
EN
MCNo
UINT#1
Set and Reset with Input Upward Differentiation Specification
The previous value of the output is retained while the master control is reset. When the master con-
trol reset is cleared, the execution condition changes to TRUE and the instruction operates.
MC_ON
UINT#1
A
UINT#1

NJ-series Instructions Reference Manual (W502)

MC
ENO
MC_ON
F_TRIG
Q B
Output from
LD instruction
MCR
ENO
MC
In ENO
MCNo
MC_ON
B
S
Output from
LD instruction
MCR
EN ENO
MCNo
MC_ON
Output from
LD instruction
Here, the input upward differentiation condition is met
and the output value changes to TRUE.
Master control reset
TRUE
FALSE
TRUE
A
FALSE
TRUE
FALSE
TRUE
B
FALSE
The input downward differentiation
condition is met, but master control is
reset, so the output is FALSE.
Master control reset
TRUE
FALSE
TRUE
A
FALSE
TRUE
FALSE
TRUE
B
FALSE
Master control reset
TRUE
FALSE
TRUE
A
FALSE
TRUE
FALSE
TRUE
B
FALSE
2 Instruction Descriptions
2
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