Fluke PM-3390B, PM-3380B Service Request Enable, 26COMMAND Reference, Request Enable Register

4 - 26COMMAND REFERENCE

*SRE	Service Request Enable
Syntax:	*SRE <numeric_data>

Query form: *SRE?

Response: <integer>

Description:

The command sets and the query reports the contents of the Service Request Enable (SRE) register. The range of the 8-bit ES R contents is between 0 and 255 decimal. However, bit 6 (value 64) is ignored, and will always be reported zero. Therefore, the real range is from 0 to 63 and from 128 to 191. The bits in the Service Request Enable Register (*SRE) determine the following:

•Which corresponding bits in the Status Byte register (STB) cause a service request from the instrument.

•Which corresponding bits in the Status Byte register (STB) are summarized in the MSS-bit in the *STB register.

A bit value of 1 indicates an enable condition and a bit value of 0 indicates a disable condition. To make sure that the service request line is activated only when a new reason for service occurs, the status byte is not updated after a SRQ (Service Request) has occurred until:

•A serial poll is done.

•The reason for service no longer exists, e.g., after reading the contents of the event register.

Example:
Send → *SRE #B100000	This sets bit 5 ESB in the Service
	Request Enable Register.