Keysight Technologies 3458A Guide D'utilisation page 337

RQS
Request service. Enables one or more status register conditions. When a
condition is enabled and that condition occurs, it sets the GPIB SRQ line true.
Syntax
RQS [value]
value
You enable a condition by specifying its decimal weight as the value parameter.
For more than one condition, specify the sum of the weights. The conditions and
their weights are:
Decimal
weight
1
2
4
8
16
32
64
128
Power-on value: If Power-On SRQ was enabled when power was removed, value =
8; otherwise, value = 0.
Default value = 0 (no conditions enabled).
Remarks
– You can control the errors that will set bit 5 with the EMASK command.
– The power-on SRQ bit is stored in continuous memory. All other bits are
Keysight 3458A User's Guide
Bit
Enables cond ition
number
0 Program Memory Execution Completed
1 Hi or Lo Limit Exceeded
2 SRQ Command Executed
3 Power-On SRQ
4 Ready for Instructions
5 Error (Consult Error Register)
6 Service Requested (you cannot disable this bit)
7 Data Available
cleared at power-on.
Command Reference 6
337