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CV
+CC
UNR
OV
OT
not used
OC
ERR
INH
-CC
FAST
NORM
Table F-4. Bit Assignment of Status, Astatus, Fault, & Mask Registers
Bit Position
11
Bit Name
NORM
Bit Weight
2048
CV = The unit is operating in constant voltage mode.
+CC = The unit is operating in constant current mode.
UNR = The output of the unit is unregulated.
OV = The overvoltage protection circuit has tripped.
OT = The over-temperature protection circuit has tripped.
OC = The overcurrent protection circuit has tripped.
ERR = A programming error has occurred. Use ERR? to clear.
-CC = The unit is operating in negative constant current mode.
INH = The external remote inhibit signal has turned the output off.
FAST = The output is in Fast operating mode. (HP 6632B, 6633B, 6634B only)
NORM = The output is in Normal operating mode. (HP 6632B, 6633B, 6634B only)
Bit Position
7
Bit Name
not used
Bit Weight
RQS = The dc source has generated a service request. Use a serial poll to clear.
ERR = Same as ERR bit in Status register. Use ERR? to clear.
RDY = This bit cleared when unit busy processing commands. Set when processing complete.
PON = A Power-on has occurred. Use CLR to clear.
FAU = A bit has been set in the Fault register. Use FAULT? to clear.
STATUS
REGISTER
1
2
4
8
16
32
64
128
256
512
1024
2048
ACCUMULATED
STATUS
REGISTER
1
2
4
8
16
32
64
128
256
512
1024
2048
Figure F-1. COMpatibility Status Model
10
9
8
FAST
-CC
INH
1024
512
256
Table F-5. Bit Configuration of Serial Poll Register
6
5
RQS
ERR
64
32
MASKUS
REGISTER
1
CV
2
+CC
UNR
4
OV
8
16
OT
not used
32
OC
64
128
ERR
256
INH
512
-CC
1024
FAST
2048
NORM
7
6
5
4
ERR
OC
n.u.
OT
128
64
32
16
4
3
RDY
not used
16
Compatibility Language - F
FAULT
REGISTER
1
2
4
SERIAL
8
POLL
16
REGISTER
FAU
32
1
64
PON
2
128
not used
4
256
not used
512
8
16
1024
RDY
32
ERR
2048
64
RQS
128
not used
3
2
1
OV
UNR
+CC
8
4
2
2
1
not used
PON
2
0
CV
1
0
FAU
1
153
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