tion Status Bit of the Status Byte Register. If any bit in the Operation Status
Event Register is set (1) while its corresponding mask bit in the Operation Sta-
tus Enable Register is set, the Operation Status Bit in the Status Byte Register
will be set. The value of the <num> parameter is a number from 0 to 15 that is
the sum of the binary-weighted values of each mask bit. The Operation Status
Event Register is described in Section 8.4.11.13, STATus:OPERation?. The fol-
lowing example causes the Operation Status Bit in the Status Byte Register to
be set when measurements on both channels have been completed.
Example: STAT:OPER:ENAB 16
Response: 16
8.4.11.21
STATus:QUEStionable?
This command reads and clears the Questionable Status Event Register. The
value returned indicates the condition of each of the eight bits of the register by
adding the binary-weighted values of each bit. The meaning of each bit, when
set (1), is as follows where 0 is the least significant and 7 is the most
significant:
0:
no problem
Bit 0
Not used.
Bit 1
Not used.
Bit 2
Not used.
Bit 3
Not used.
Bit 4
Measurement Invalid bit.
Bit 5
Not used.
Bit 6
Not used.
Bit 7
Not used.
Example: STAT:QUES?
Response: 16
8.4.11.22
STATus:QUEStionable:CONDition?
This command reads the Questionable Status Condition Register. Reading this
register does not affect it. The value returned indicates the condition of each of
the eight bits of the register by adding the binary-weighted values of each bit.
The meaning of each bit, when set (1), is as follows where 0 is the least signifi-
cant and 7 is the most significant:
0:
no problem
1620 the “DewK”
135
8 Digital Communications Interface
