Measurement Computing TempScan/1100 - Manual (Page 76)

4-18 System Configuration 879596 TempScan / MultiScan User's Manual
The Trigger and Stop can each be assigned any of the following sources:
• @: Trigger and/or Stop event. Trigger source type
1 . When @ is selected as the trigger source, the
Trigger On ( @ ) command will generate a trigger.
• GET: Trigger and/or Stop event. Trigger source type
2 . Not applicable for RS-232 serial
applications. When GET is selected as the trigger source, data collection will start when the IEEE 488
Group Execute Trigger (GET) command is sensed on the IEEE 488 bus and the TempScan/1100 or
MultiScan/1200 unit is addressed to LISTEN.
• TALK: Trigger and/or Stop event. Trigger source type
3 . Not applicable for RS-232 serial
applications. When TALK is selected as the trigger source, data collection will start when the
TempScan/1100 or MultiScan/1200 unit is addressed to TALK.
• Selected Temperature-Channel Level (Above or Below): Trigger and/or Stop event. Trigger source
types 4 and 5 . When a selected temperature channel is specified as the trigger source, data collection
will start when the level for the selected channel has been crossed (either above or below), as defined
via the Set Trigger Level (
L ) command.
• External TTL (Rising or Falling): Trigger and/or Stop event. Trigger source types
6 and 7 . When
the External TTL Level is specified as a trigger source, a TTL level signal to the rear-panel BNC
trigger connector will generate a trigger. The external trigger is edge sensitive, and triggering on the
rising edge or falling edge can be specified.
• Count (Post-Trigger): Trigger and/or Stop event. Trigger source type
8 . When Count is selected as
the Stop event, scans will occur until the specified number of Post-Trigger scans have been acquired,
as defined via the Set Counts (
Y ) command. At this point, the Post-Trigger acquisition will stop and if
configured, the Post-Stop acquisition will begin.
• Alarm (On or Off): Trigger and/or Stop event. Trigger source types
9 and 10 . 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, as defined via the Configure Channels (
C ) command.
• Absolute Time: Trigger and/or Stop event. Trigger source type
11 . When absolute time is specified
as a trigger source, data collection will start when the real-time clock time equals the programmed
time(s), as defined via the Program Trigger Times (
P ) command.
Note: For the MultiScan/1200 unit to recognize a Trigger (trigger start event) source which is set to
TTL Level or Alarm, at least one Pre-Trigger scan must be programmed via the pre
parameter of the Set Counts ( Y ) command, to initiate scanning.
For more information on Trigger and Stop configuration, see command Set Trigger Configuration (
T ) in
Appendix A- API Command Reference.
Additional Configuration
Beyond the minimum required configurations, the TempScan/1100 or MultiScan/1200 provides further
convenience and flexibility with the following optional configurations:
• Configuration of the alarms. See commands Assign Digital Alarm Output (
A ) and Channel
Configuration ( C ).
• Configuration of the stamps. See commands Set Scan Time Stamping (
*T ), Set Scan Alarm Stamping
( A# ), and Set Digital Input Stamping ( I# ).
• Configuration of the data format. See command Set Data Format (
F ).
• Configuration of the power-up. See command Set Power-Up Configuration (
*S ).