5 SEQUENCE INSTRUCTIONS
5.3 Output Instructions
177
5
Timer
OUT T, OUTH T, OUT ST, OUTH ST
When the safety timer is used in safety programs executed by the Safety CPU, unless otherwise specified,
replace some words as follows:
•"Timer" "Safety timer"
• "Retentive timer" "Safety retentive timer"
•"T" "SA\T", "ST" "SA\ST", "M0" "SA\M0"
•"Scan" "Safety cycle processing"
• "Scan time" "Safety cycle time"
• OUT T: Low-speed timer instruction
• OUTH T: High-speed timer instruction
• OUT ST: Low-speed retentive timer instruction
• OUTH ST: High-speed retentive timer instruction
These instructions start time measurement when the operation result up to the OUT instruction is on. When time is up, the
normally open contact turns on (continuity state) and the normally closed contact turns off (non-continuity state).
■Execution condition
• [RnPCPU (redundant)] If these instructions are used in a program executed in both systems, there are restrictions on their operation when the systems are
switched. ( MELSEC iQ-R CPU Module User's Manual (Application))
Ladder ST
Value: Set value
ENO:=OUT_T(EN,Coil,Value);
ENO:=OUTH(EN,Coil,Value);
FBD/LD
Value: Set value
( is to be replaced by either of the following: OUT_T, OUTH.)
Instruction Execution condition
OUT T
OUTH T
OUT ST
OUTH ST
Every scan
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant)
(Process)
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