Features and Functions 3
Keysight 34980A Mainframe User’s Guide 181
Remote Interface Operation:
To clear the specified output lines (or to clear all
four lines), use one of the following commands.
To select the output configuration for all four output lines, use the following
command.
OUTPut:ALARm:MODE {LATCh|TRACk}
To configure the slope of all four output lines, use the following command.
OUTPut:ALARm:SLOPe {NEGative|POSitive}
Using Alarms With the Digital Modules
You can configure the instrument to generate an alarm when a specific bit pattern
or bit pattern change is detected on a digital input channel or when a specific
count is reached on a totalizer channel (34950A and 34952A). These channels do
not have to be part of the scan list to generate an alarm. Alarms are evaluated
continuously as soon as you enable them.
– The channel numbering scheme for the digital input and totalizer channels is
shown below (s represents the slot number).
– Pattern comparisons always start on the lowest-numbered channel in the bank
and extend to all channels involved in the channel width.
– Alarms are evaluated continuously on the digital modules, but alarm data is
stored in reading memory only during a scan.
OUTPUT:ALARM2:CLEAR
OUTPUT:ALARM:CLEAR:ALL
Clear alarm output line 2
Clear all four alarm outputs
Digital Input Channel Numbering Totalizer Channel Numbering
34950A
s101 through s104
s201 through s204
s301, s302
34952A s001 through s004 s005
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