Keithley 6221 User Manual

11-12 Status Structure Model 6220/6221 Reference Manual
Return to Section 11 topics
Figure 11-4
Standard event status
Operation event status
The used bits of the operation event register (Figure 11-5) are described as
follows:
• Bit B0, Calibrating (CAL) — Set bit indicates that the Model 622x is
calibrating.
Error/status code: +121
• Bit B1, Sweep Done (SwpD) — Set bit indicates that a sweep, Delta,
Differential Conductance, or a pulse sweep for Pulse Delta is finished.
Error/status code: +122
• Bit B2, Sweep Aborted (SwpA) — Set bit indicates that a sweep, Delta,
Differential Conductance, or a pulse sweep for Pulse Delta has been
aborted.
Error/status code: +123
* ESR ?
PON
(B7)
URQ
(B6)
CME
(B5)
EXE
(B4)
DDE
(B3)
QYE
(B2) (B1) (B0)
OR
Standard Event
Status Register
Standard Event
Status Enable
Register
PON = Power On
URQ = User Request
CME = Command Error
EXE = Execution Error
DSE = Device-Specific Error
OPC
PON
(B7)
URQ
(B6)
CME
(B5)
EXE
(B4)
DDE
(B3)
QYE
(B2) (B1) (B0)
OPC
* ESE
* ESE ?
(B15 - B8)
(B15 - B8)
To Event
Summary
Bit (ESB) of
Status Byte
Register.
&
&
&
&
&
&
&
QYE = Query Error
OPC = Operation Complete
& = Logical AND
OR = Logical OR
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Keithley 6221 Specifications

General

Interface	GPIB, RS-232
Communication Interface	GPIB, RS-232
Current Sourcing Accuracy	±(0.03% of output + 20 pA)
Current Sinking Accuracy	±(0.03% of output + 20 pA)
Output Resolution	100 fA
Output Accuracy	±(0.03% of output + 20 pA)
Power Requirements	100 V to 240 V AC, 50/60 Hz