External Pulse Module
The External Pulse module allows you to manually trigger any module in the device that accepts a pulse input. For example, you can reset counters or timers, or pulse external equipment (if your device has Pulser modules).
External Pulse modules have no inputs; they are controlled via communications.
This register allows you to assign a priority level to the events produced when the output register is written. When EvPriority is zero, no event is written.
External Pulse modules have a single trigger register which is manually controlled via communications.
All events produced by an External Pulse module are written into this register. Possible events and their associated priority numbers are shown in the table below.
|Event priority group
|Setup register or labels have changed.
|Output Value Written
|A value is written to the Trigger output register.
|* The priority of this event is determined by the value in the EvPriority setup register.
Responses to special conditions
The following table summarizes how the External Pulse module behaves under certain conditions.
|Response of output registers
|When the device is started or powered-up (either the first time, or after a shut-down).
|Trigger output registers do not “contain” a pulse at startup.