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4-19
Programming
Monitoring the Instrument
Standard Event Status register
The Standard Event Status Register monitors the following instrument status
events:
• OPC - Operation Complete
• RQC - Request Control
• QYE - Query Error
• DDE - Device Dependent Error
• EXE - Execution Error
• CME - Command Error
• URQ - User Request
• PON - Power On
When one of these events occur, the event sets the corresponding bit in the
register. If the bits are enabled in the Standard Event Status Enable Register,
the bits set in this register generate a summary bit to set bit 5 (ESB) in the
Status Byte Register.
Table 4-3. Bits in Operation Status Register
Bit Definition
0
not used
1
SETTling
- indicating that the instrument is waiting for the motor to reach the
proper position before beginning data acquisition.
2
RANGing
- indicating the instrument is currently gain ranging.
3
not used
4
MEASuring
- indicating that the instrument is making a measurement.
5 through 8
not used
9
Processing
- indicating that the instrument is currently processing the data
acquired.
10
Hardcopy
- indicating that the instrument is currently printing the data to the
parallel port.
11
Averaging
- indicating that the instrument is in the process of averaging the
noise for the signal-to-noise ratio calculation.
12 through 16
not used