Idiomas disponibles
Idiomas disponibles
3. Press Clear to return the limit value to the default value, 0.
4. Press [Scan/Start] to initiate the scan and save the readings in reading memory. If an alarm occurs on a channel
as it is being scanned, then that channel's alarm status is saved in reading memory as the readings are taken.
Each time you start a new scan, the instrument clears all readings (including alarm data) stored in reading
memory from the previous scan.
5. As alarms are generated, they are also logged in an alarm queue, which is separated from reading memory.
Press [View] > Alarms to display the alarm queue.
Configuring alarm limits with the multifunction module
You can configure the DAQM907A multifunction module to generate an alarm when a specific bit pattern or bit
pattern change is detected on a digital I/O channels (channel 01 and 02) or when a specific count is reached on a
totalizer channel (channel 03).
To configure an alarm on a digital I/O channel
1. On a multifunction module slot, press [Alarm] and select the digital I/O channel.
2. Press Set Pattern > Pattern, and use the knob or the front panel arrow keys to set the digital mask data for 8-bit
digital pattern comparison.
3. Sets each bit to "0", "1", or "X" by pressing the Set to all 0's, Set to all 1's, or Set to all X's softkeys. Bits set to "X"
are excluded from the digital pattern comparison.
4. Press Fail On to configure the selected channel to generate an alarm when a specific 8-bit pattern read is equal
or not equal to the digital data read.
To configure an alarm on a totalizer channel
1. On a multifunction module slot, press [Alarm] and select the totalizer channel.
2. Press Set Limits > Limit Count to specify the limit count. An alarm will be generated when a specific count is
reached during scanning.
Keysight DAQ970A/DAQ973A User's Guide
3 Features and Functions
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