corresponding bit in the Status Byte Register is set by an appropriate event. For more
information on register structure, see the information presented earlier in this section.
The Service Request Enable Register is shown in Figure 4-15. Notice that the decimal weight
of each bit is included in the illustration. The sum of the decimal weights of the bits that you
wish to set is the value that is sent with the *SRE command. For example, to set the ESB and
MAV bits of the Service Request Enable Register, send the following command:
*SRE 48
Where: ESB (bit B5) = Decimal 32
MAV(bit B4) = Decimal 16
<NRf> = 48
The contents of the Service Request Enable Register can be read using the *SRE? query
command.
B7 B6 B5 B4 B3 B2 B1 B0
(2 )
7
(2 )
5
(2 )
4
(2 )
3
(2 )
2
(2 )
0
32
0/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Enable Service Request
Event
0 = Disable (Mask) Service
Request Event
Events : OSB = Operation Summary Bit
ESB = Event Summary Bit
MAV = Message Available
QSB = Questionable Summary Bit
EAV = Error Available
MSB = Measurement Summary Bit
OSB ESB MAV QSB EAV
0/1 0/1 0/1 0/1
128 16 8 4
MSB
1
0/1
gure
-
Service request enable
register
Remote Operation 4-43
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