Alarm Register
Bit number Bit name Decimal value Definition
0 Alarm 1 1 An event has occurred on Alarm 1. Event only; condition register will return 0.
1 Alarm 2 2 An event has occurred on Alarm 2. Event only; condition register will return 0.
2 Alarm 3 4 An event has occurred on Alarm 3. Event only; condition register will return 0.
3 Alarm 4 8 An event has occurred on Alarm 4. Event only; condition register will return 0.
4 Queue Not Empty 16 The alarm queue is not empty.
5 Queue Overflow 32 An alarm queue overflowed. Event only; condition register will return 0.
6 Alarm 1 64 Alarm 1 is triggered.
7 Alarm 2 128 Alarm 2 is triggered.
8 Alarm 3 256 Alarm 3 is triggered.
9 Alarm 4 512 Alarm 4 is triggered.
10 Not Used 1024 (Always returns 0)
11 Not Used 2048 (Always returns 0)
12 Lower Limit 4096 A lower limit alarm has occurred.
13 Upper Limit 8192 An upper limit alarm has occurred.
14 Not Used 16384 (Always returns 0)
15 Not Used 32768 (Always returns 0)
Standard Event Register
Bit number Bit name Decimal value Definition
0 Operation Complete 1 All commands prior to and including
*OPC
have been executed.
1 Not Used Not Used 0 is returned.
2 Query Error 4 The instrument tried to read the output buffer but it was empty. Or, a new command
line was received before a previous query has been read. Or, both the input and output
buffers are full.
3 Device-Specific
Error
8 A device-specific error, including a self-test error or calibration error, occurred (an
error in the -300 range or any positive error has been generated). See
Device-Spe-
cific Errors
for the complete SCPI error message list.
4 Execution Error 16 An execution error occurred (an error in the -200 range has been generated). See
Exe-
cution Errors
for the complete SCPI error message list.
5 Command Error 32 A command syntax error occurred (an error in the -100 range has been generated).
See
Command Errors
for the complete SCPI error message list.
6 Not Used Not Used 0 is returned.
7 Power On 128 Power has been cycled since the last time the event register was read or cleared.
294
Keysight DAQ970A/DAQ973A Programming Guide
2 SCPI Programming
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