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3 Features and Functions
Alarm output
Configures the four alarm output hardware lines. Four TTL-compatible alarm outputs are available on the rear panel
Ext Trig/Alarms connector. You can use these hardware outputs to trigger external alarm lights, sirens, or send a
TTL-compatible pulse to your control system. You can assign an alarm to any configured channel and multiple
channels can be assigned to the same alarm number. Each alarm output line represents the logical "OR" of all
channels assigned to that alarm number (an alarm on any of the associated channels will pulse the line).
Press the Alarm Out softkey to configure the output alarm.
Softkey
Clear
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Clear All
Mode
Latch
Track
Out Alarm
Neg
Pos
Help topics
Displays the instrument information and a list of help topics in the selected local language. See
System
for details.
74
Description
Clears the state of a specified alarm output line (Alarms 1 through 4).
Clears the state of all four alarm output lines.
The alarm output is asserted when a channel's reading crosses a limit, and remains asserted until you
clear it manually, start a new scan, or cycle power.
The alarm output is asserted when a channel's reading crosses a limit, and remains asserted only while
subsequent readings remain outside the limit. When a reading returns within the limits, the output is auto-
matically cleared.
Configures the level for all four alarm output lines to indicate an alarm at 0 V (TTL-compatible low).
Configures the level for all four alarm output lines to indicate an alarm at 3.3 V (TTL-compatible high).
Use the Built-In Help
Keysight DAQ970A/DAQ973A User's Guide
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