HP 8163A Programming Manual page 33

Introduction to Programming
The Status Model
Operation/Questionable Slot Status
• The Operation/Questionable Slot Status consist of a condition
and an event register.
• A "rising" bit in the condition register is copied to the event
register.
• A "falling" bit in the condition register has no effect on the event
register.
• Reading the condition register is non-destructive.
• Reading the event register is destructive.
• A summary of the event register, the condition register and the
enable mask is set in the status byte.
Operation Slot Status Register
• Bit 0 is set if the laser is switched on.
• Bit 1 is set if the Coherence Control is switched on.
• Bit 3 is set if Power Meter zeroing is ongoing.
• All other bits are unused, and therefore set to 0.
Questionable Slot Status Register
• Bit 0 is set if excessive power is set by the user for any source
module or if excessive averaging time is set for any Power Meter.
• Bit 1 is set if the last Power Meter zeroing failed.
• Bit 2 is set if temperature is out of range.
• Bit 3 is set if laser protection is switched on.
• Bit 4 is set if the module has not settled.
• Bit 5 is set if the module is out of specifications.
• Bit 6 is set if ARA is recommended.
• Bit 7 is set if the duty cycle is out of range.
• All other bits are unused, and therefore set to 0.
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