Omron NJ501-1500 User Manual

2-67
2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
Sequence Control Instructions
2
MC and MCR
z 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.
z 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.
A
B
UINT#1
UINT#1
MC
In ENO
MCNo
MCR
EN ENO
MCNo
MC_ON
A
B
MC_ON
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
Master control reset
Output from
LD instruction
F_TRIG
F_TRIG_instance
Clk Q
The input downward differentiation
condition is met, but master control is
reset, so the output is FALSE.
A
UINT#1
UINT#1
B
MC
In ENO
MCNo
MCR
EN ENO
MCNo
MC_ON
A
B
MC_ON
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
Master control reset
Output from
LD instruction
MC_ON
A
B
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
Master control reset
Output from
LD instruction
S
Here, the input upward differentiation condition is met
and the output value changes to TRUE.

Omron NJ501-1500 Specifications

General

Brand	Omron
Model	NJ501-1500
Category	Controller
Language	English