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B&K Precision 2552-2559 - Programming Manual User Manual

Page 97

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97

DESCRIPTION

The *SRE command sets the Service Request

Enable register (SRE). This command allows
the user to specify which summary message
bit(s) in the STB register will generate a service
request.

A summary message bit is enabled by writing a
‘1’ into the corresponding bit location.
Conversely, writing a ‘0’ into a given bit
location prevents the associated event from
generating a service request (SRQ). Clearing
the SRE register disables SRQ interrupts.

The *SRE? query returns a value that, when

converted to a binary number, represents the

bit settings of the SRE register.


Note: that bit 6 (MSS) cannot be set and its

returned value is always zero.


COMMAND SYNTAX

*SRE

: = 0 to 255


QUERY SYNTAX

*SRE?

RESPONSE FORMAT

*SRE

EXAMPLE

The following instruction allows an SRQ to be

generated as soon as the MAV summary bit (bit
4, i.e. decimal 16) or the INB summary bit (bit
0, i.e. decimal 1) in the STB register, or both,
are set. Summing these two values yields the
SRE mask 16+1 = 17.


C

ommand message:

*SRE 17

STATUS

*SRE

Command /Query