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Request Service (RQS) Byte
Emulation mode attempts to recreate similar behavior of the SRQ and RQS feature of the
8662A/8663A. However, is not possible that the response timings will be the same, nor
will the timing for clearing bits within the SRQ.
The following register shows what bits are emulated by the Instrument
8
7
128
64
SP87
RQS
SP87
Sweep End
Param Change When any parameter of the output changes
Power Fail
HW Error
Entry Error
Ready
6
5
32
16
Sweep
Param
End
Changed
Sending this command causes an SRQ
When the last step of a sweep occurs
When the generator is returned to a power ON condition (from standby
or off)
When a hardware condition arises
when any invalid keystroke or program command occurs
When the generator is finished processing a Data message.
HP 8662A/8663A Command Emulation
4
3
2
8
4
2
Power
HW
Entry
Fail
Error
error
4F
Emulated Commands
1
1
Ready
4F-9
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