IOtech MultiScan 1200, User Manual

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182 Chapter 12: System Configuration 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/RS-422 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/RS-422
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 the chapter 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
).