HP 8360 manual Rqs

ANALYZER STATUS REGISTER

STATUS BYTE (#l)

Bit #	7	6	5	4	3	2	1	0
Decimal	128	64	32	16	8	4	2	1
Value
Function	SRQ on new	REQUEST	SRQ on	SRQ on	SRQ on	SRQ on	SRQ on	SRQ on
	frequencies	SERVICE	HP-IB or	End of	RF Settled	Changed in	Numeric	Any Front
	or sweep	(RQS)	syntax error.	Sweep		Extended	Entry	Panel Key
	time in					status	Completed	Pressed
	effect.					Byte	(HP-IB or
							Front
							Panel)
		EXTENDED STATUS BYTE (#2)
Bit #	7	6	5	4	3	2	1	0
Decimal	128	64	32	6	a	4	2	1
Value
Function	Fault	RF Unleveled	Power	RF Unlocked	External	Oven	Over	Self Test
	Indicator		Failure		Frequency	Cold	Modulation	Failed
	On				Reference
					Selected

Status Byte 1

Bit 0: SRQ caused by a key closure on the front panel of the synthesizer (use the OM code to determine the front panel status).

Bit 1: SRQ caused by the completion of a numeric entry (use the OA code to determine the value of the numerical entry).

Bit 2: SRQ caused by a change in the extended status byte (status byte 2) affected by the RE-coded mask (see the RE code for an explanation of this masking).

Bit 3: SRQ caused by the completion of phase locking and the settling of the RF source (use the OK code to determine the last lock frequency).

Bit 4: SRQ on end-of-sweep or mid-sweep update in NA (network analyzer code) mode.

Bit 5: SRQ caused by HP-IB syntax error.

Bit 6: SERVICE REQUEST; by IEEE-488 convention, the

instrument needs service from the controller when this bit is set true.

Bit 7: SRQ caused by a change in the coupled parameters (start frequency, center frequency, and sweep time). Use the OC code to determine the new values of the coupled parameters.

Status Byte 2 (Extended Status Byte)

Bit 0: Self test failed at power on or at Instrument Preset. This bit remains latched until this status byte has been read, or until cleared by the CS or CLEAR 719 commands.

Bit 1: Excessive amplitude modulation input.

A-20 Operating and Programming Reference	HP 8360
User’s	Handbook