“STB
Table 5-4. The Status Byte Register
BIT j
BIT BIT CONDITION
i WEIGHT
NAME
7
1
128
___
6 64
MSS
5 ! 32
ESB
4
16
MAV
3 8
LCL
2 4
-_-
1
2
--_
0
1
MSB
0 = not used
0 = instrument has no reason for service
1 = instrument is requesting service
0 = no event status conditions have occurred
1 = an enabled event status condition has
occured
0 = no output messages are ready
1 = an output message is ready
0 = a remote-to-local transition has not occurred
1 = a remote-to-local transition has occurred
not used
not used
0 = HP
1650B/1651B
has activity to report
1 = no activity to report
0 = False = Low
1 = True = High
Common Commands
HP 1650B/HP 1651B
5-14
Programming Reference