Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 85)

5.2 Relay Circuit Instructions
5.2.7 Rising-edge Pulses (ON-PLS)
5-16
( 3 ) Programming Example
The DB000002 output coil turns ON for only one scan if the status of DB000001 changes when the DB000000 relay
changes from OFF to ON.
The timing chart is shown below.
DB000000
DB000002
ON
OFF
ON
OFF
ON
OFF
1 scan 1 scan
DB000001