Power Meter Remote Operation 1
N1911A/1912A P-Series Power Meters Programming Guide 89
The condition bits are set and cleared under the following conditions:
Table 1-12 Bit change conditions for Device Status Register
Bit Number Meaning EVENts Causing Bit Changes
1 Channel A sensor
connected
– SET: When a power sensor is connected to the Channel A input.
– CLEARED: When no power sensor is connected to the Channel A input.
2 Channel B sensor
connected
– SET: When a power sensor is connected to the Channel B input.
– CLEARED: When no power sensor is connected to the Channel B input.
3 Channel A error – SET: If the power sensor EEPROM on Channel A has failed or if there are power
sensors connected to both the rear and front panel Channel A connectors.
– CLEARED: In every other condition.
4 Channel B error – SET: If the power sensor EEPROM on Channel B has failed or if there are power
sensors connected to both the rear and front panel Channel B connectors.
– CLEARED: In every other condition.
5 Channel A Front/Rear – SET: If a power sensor is connected to the Channel A rear panel.
– CLEARED: If a power sensor is connected to the Channel A front panel.
6 Channel B Front/Rear – SET: If a power sensor is connected to the Channel B rear panel.
– CLEARED: If a power sensor is connected to the Channel B front panel.
14 Front Panel Key Press This is an event, and DOES NOT set the condition register. The bit is set in the event
register which is cleared when read. Note that the transition registers are of no use
for this bit.
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