Omega Vehicle Security 1400 User Manual
Configuration Aspects for Programmers
Appendix B
B-14
ChartScan User’s Manual
In order for an acquisition to take place, the unit must have a trigger event and can be assigned a Stop Event.
This allows different stimuli to begin and end an acquisition.
This allows different stimuli to begin and end an acquisition.
Note:
If the trigger start event is level or alarm, at least one pre-trigger scan must be programmed to
initiate scanning in order for ChartScan to recognize the event.
initiate scanning in order for ChartScan to recognize the event.
External TTL (High or Low Level)
Start and/or Stop Event. When External TTL Level is specified as a trigger source (T6 or T7), a TTL level
signal on the external trigger connector (rear panel BNC) will generate a trigger. The external trigger is level
sensitive, and triggering on the high level or low level can be specified.
signal on the external trigger connector (rear panel BNC) will generate a trigger. The external trigger is level
sensitive, and triggering on the high level or low level can be specified.
Selected Temperature Channel (High or Low Level)
Start and/or Stop Event. When a selected channel is specified, data collection starts when the level for the
selected channel has been crossed (either high level or low level) as the user defined with the
selected channel has been crossed (either high level or low level) as the user defined with the
L
command.
GET
Note:
GET
is not applicable to RS-232 applications.
Start and/or Stop Event. When GET is selected as the trigger source (T2), data collection starts whenever the
IEEE488 Group Execute Trigger (GET) command is sensed on the IEEE 488 bus and ChartScan is addressed to
LISTEN.
IEEE488 Group Execute Trigger (GET) command is sensed on the IEEE 488 bus and ChartScan is addressed to
LISTEN.
TALK
Note:
TALK
is not applicable to RS-232 applications.
Start and/or Stop Event. When TALK is selected as the trigger source (T3), data collection starts when
ChartScan is addressed to TALK.
ChartScan is addressed to TALK.
‘@’ character
Start and/or Stop Event. When @ is selected as the trigger source, the command trigger (“@”) generates a
trigger when the Trigger Source is set for a command trigger (T1).
trigger when the Trigger Source is set for a command trigger (T1).
Alarm (on or off)
Start and/or Stop Event. When alarm is selected as a trigger source, the acquisition will start or stop when any
channel goes into or out of an alarm condition.
channel goes into or out of an alarm condition.
Absolute time
Start and/or Stop Event. When absolute time is specified, data collection starts when the real time clock time of
day equals the programmed time.
day equals the programmed time.
Count (post-trigger)
Start and/or Stop Even. When count is selected as the Stop Event, scans are collected until the specified number
of post-trigger scans (specified by the Y command) have been collected, at which time the post-trigger
Acquisition will stop and the post-stop Acquisition will begin, if configured.
of post-trigger scans (specified by the Y command) have been collected, at which time the post-trigger
Acquisition will stop and the post-stop Acquisition will begin, if configured.