Bk-precision 2552-2559 - Programming Manual Bedienungsanleitung PDF herunterladen (Seite 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 <value>

<value> : = 0 to 255

QUERY SYNTAX *SRE?

RESPONSE FORMAT *SRE <value>

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.

Command message:

*SRE 17

STATUS

*SRE

Command /Query

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Bk-precision 2552-2559 - Programming Manual Bedienungsanleitung Seite 97