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58 VM4016 Command Dictionary
*SRE
Purpose
Sets the service request enable register
Type
IEEE 488.2 Common Command
Command Syntax
*SRE <mask>
Command Parameters
<mask> = Numeric ASCII value from 0 to 255
*RST Value
None – Required Parameter
Query Syntax
*SRE?
Query Parameters
N/A
Query Response
Numeric ASCII value from 0 to 255
Description
The Service Request Enable (SRE) mask is used to control which bits in the status
byte generate back plane interrupts. If a bit is set in the mask that newly enables a
bit set in the status byte and interrupts are enabled, the module will generate a
REQUEST TRUE event via an interrupt. See the *STB? Command for the layout of
bits.
Note:
Bit 6 is always internally cleared to zero as required by IEEE 488.2 section 11.3.2.3.
The layout of the Service Request Enable Register is:
Bit 0 – Unused
Bit 1 – Unused
Bit 2 – Error Queue Has Data
Bit 3 – Questionable Status Summary (Not Used)
Bit 4 – Message Available
Bit 5 – Event Status Summary
Bit 6 – 0 (per IEEE 488.2 section 11.3.2.3)
Bit 7 – Operation Status Summary
Examples Command / Query Response (Description)
*SRE 4
(Sets the service request enable register)
*SRE?
4 (Returns the value of the SRE register)
Related Commands
N/A