Agilent Technologies Agilent 86120C manual Stb?

Programming Commands

Common Commands

*STB?

The *STB (status byte) query returns the current value of the instru- ment’s status byte.

Syntax*STB?

Description The master summary status (MSS) bit 6 indicates whether or not the device has at least one reason for requesting service. When you read the status byte register, the value returned is the total of the bit weights of all of the bits set to one at the time you read the byte. The following table shows each bit in the status byte register and its bit weight. The *STB? query does not affect the contents of the status byte register.

Table 4-17. Status Byte Register

Bit	Bit Weight	Condition
7	128	Not Used
6	64	Master Summary Status (MSS)
5	32	Event Status Bit (ESB)
4	16	Message Available (MAV)
3	8	Not Used
2	4	Error queue status
1	2	Not Used
0	1	Not Used

Query Response	<integer> from 0 to 255.
Example	OUTPUT 720;”*STB?”
	ENTER 720;Value
	PRINT Value

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