IMO iSmart V4 - Page 176

Chapter 6 FBD Block Diagram Programming 156
(2) Timer mode 1 (ON-Delay A Mode)
Mode 1 Timer will time up to a fixed value and stop timing when the current time is equal to the preset value.
Additionally, the Timer current value will reset to zero when Timer is disabled.
FBD display
Parameter display
Enable Input
→
←
Current value
←
Preset value
Timing Parameter
→