Technical data

1 Power Meter Remote Operation
66 N1911A/1912A P-Series Power Meters Programming Guide
The condition bits are set and cleared under the following conditions:
Tab le 1- 12 Bit change conditions for Device Status Register
Bit
Number
Meaning EVENts Causing Bit Changes
1Channel 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.
2Channel 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.
3Channel 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.
4Channel 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.
5Channel 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.
6Channel 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.