User guide

CME 2 User Guide Scope Tool
Copley Controls 157
15.4: Trigger Setup
Set up Scope trace trigger (manual setup)
1
Click Trigger Setup to open the screen:
2
Choose from the settings described below:
Setting
Description
Trigger Type
Selects trigger type.
 Immediate Trigger: Trace begins as soon as Record is pressed.
 Rising Edge: Trace triggers when (after Record is pressed) the trigger signal rises though
the trigger level setting.
 Falling Edge: Trace triggers when (after Record is pressed) the trigger signal falls though
the trigger level setting.
 Above Level: Trace triggers when the trigger signal is greater than or equal to the trigger
level setting.
 Below Level: Trace triggers when the trigger signal is less than or equal to the trigger level
setting.
 Function Generator: Trace begins in synchronization with the Function Generator.
 Move Start (position mode only): Trace begins in synchronization with the trajectory
generator.
 Event Status Rising Edge/Event Status Falling Edge: trigger on the rising or falling edge of
changes to events chosen in the Event Status Bit setting (below).
 Input Level High/Input Level Low: trigger when specified input is high or low.
 Output Active/Inactive: trigger when specified output is active or inactive (note that outputs
can be configured to be active when high or low). (Not available on Accelus or Junus.)
Trigger On
Selects which channel will be used as the trigger signal: 1, 2, 3, 4, 5, or 6.
Position
Selects placement of the trigger event on the screen. (Value is not configurable for
Immediate or Function Generator trigger types.).
 Left for optimal viewing of events following the trigger.
 Middle for optimal viewing of events preceding and following the trigger.
 Right for optimal viewing of events preceding the trigger.
Level
Sets the trigger level, in units appropriate to the channel selected.
Event Status
Bit
With an event status trigger type selected, choose the event status word bit that will trigger
the trace. For descriptions of the event status word bits,
see Custom Event Functions (p. 62).