38
Q?
Status Byte Register query
Function: Reports the value of 1830-C’s status byte. This query informs
the user about 1830-C’s current system status. All bits in the
status byte register, except the MAV bit, can be cleared using
the clear status command, C. See Appendix A for a detailed
description of each bit and the Status Reporting System.
7 6 5 4 3 2 1 0
Parameter Error
Command Error
Saturation
Over-Range
Message Available (MAV)
Busy
Service Request
Read Done
Bits
(See Appendix A
for details)
Syntax: Q? or q?
Parameter: none
Returns: 0 - 255
Example: Send: Q?
Resp: 01 Parameter error
Send: Q?
Resp: 02 Command error
Send: Q?
Resp: 04 Input signal has saturated the photodetector
Send: Q?
Resp: 8 Input signal exceeds the max level for signal range
Send: Q?
Resp: 16 1830-C is ready with the response to a query
Send: Q?
Resp: 32 1830-C is busy auto-ranging or is in power-up state.
Send: Q?
Resp: 128 1830-C is ready with new power reading
Send: Q?
Resp: 144 A new power reading is available and MAV bit is
high.
Related
Commands: All commands & queries