HP 8642A Operation And Calibration Manual

Operation Model 8642A/B
Operating Messages (cont'd)
Execution Error Messages
Local These messages are automatically displayed.
HP-IB: All
of these messages are output via HP-IB using "OE".
Execution Error messages (message code is prefixed with "E") describe the Signal Generator's reason for not
executing an attempted setting. Some settings are not possible because functions are coupled together due
to limitations of internal circuit configuration This coupling will sometimes limit the execution of a
setting because one function limits the setting of the other. When your setting attempt cannot occur, the
Signal Generator explains the restriction. Execution Error messages occur immediately after executing a
command that does not execute.
HP-IB You can read only the first Execution Error message if more than one has occurred For example,
assume
that more than one Execution Error message has occurred since eitller the Statlls Byte was cleared
or since the last time "OE" was executed. Then reading an Execution Error message using "OE" will enable
you to read out only the first message.
NEXT STEP NOT POSSIBLE
.E1 4001
Next step is not possible. The current setting cannot be stepped up or down (as attempted) with the
increment set value. To clear the message without changing instrument settings, select the [ SHIFT I key
twice. If you want to read a message that might more specifically describe the setting problem, attempt a
data setting similar to the step attempt that caused this error message.
NOT POSSIBLE. ABOVE MAX
.E2 4002
Not possible above the maximum setting ever allowed. The attempted setting IS above the function',
maximum possible setting (independent of other functions).
NOT POSSIBLE. BELOW MIN
.E3 4003
Not possible below the minimnm setting ever allowed. The attempted setting is below the function's
minimum possible setting (independent of other functions).
SELECT MOD.PREFIX FIRST .E4
4004
Select the type of modulation first. A modulation source was selected when a modulation setting was not
displayed. Hefore selecting the modulation source, select any of the following modulation types: rnAfVf),
CElQIJ, .pM (C®!fTJ CTI.2D), or PUl.SE ( [ SHIFT I CEfiD)·
HP- IB: Specify the modulatioll type code (AM, FM, PM, or pL) before the modula tion source prefix code
(NT,
XA, XD, BA, or BD)
SELECT SWP.PREFIX FIRST .E5
4005
Select the type of sweep first. A sweep mode (auto, manual, or single) was selected without specifying the
sweep type (frequency or amplitude sweep). Select CSIART FREQ 1, CJ;?TOP FREQ ), I START AMPTD J,
or [§TOP 6!Y1e:IQJ before selecting the sweep mode
lIP-IE: Specify the sweep type code (FA, FB, AA, or AB) before the sweep mode code (SA, SM, or SG)
PLEASE SELECT FUNCTION
.E6 4006
Please select an active functIOn. A data value was attempted during manual sweep or when no active
function existed. Select a v,did function before attempting to enteJ a rlata value.
HP-IB: Precede the data enlry wilh a function prefix code.
3-184

HP 8642A Specifications

General

Brand	HP
Model	8642A
Category	Inverter
Language	English