Keithley 6487 Reference Manual

Model 6487 Reference Manual SCPI Reference Tables 14-13
Table 14-6
STATus command summary
Command Description
Default
parameter
Ref
Section SCPI
:STATus (Note 1) 10 √
:MEASurement Measurement event registers:
[:EVENt]? Read the event register. (Note 2)
:ENABle <NDN> or
<NRf>
Program the enable register. (Note 3)
:ENABle? Read the enable register.
:CONDition? Read the condition register.
:STATus 10
:OPERation Operation event registers: √
[:EVENt]? Read the event register. (Note 2) √
:ENABle <NDN> or
<NRf>
Program the enable register. (Note 3) √
:ENABle? Read the enable register. √
:CONDition? Read the condition register. √
:QUEStionable Questionable event registers: √
[:EVENt]? Read the event register. (Note 2) √
:ENABle <NDN> or
<NRf>
Program the enable register. (Note 3) √
:ENABle? Read the enable register. √
:CONDition? Read the condition register. √
:PRESet Return status registers to default states. √
:QUEue Read error queue: √
[:NEXT]? Read and clear oldest error/status (code and
message).
(Note 4) √
:ENABle <list> Specify error and status messages for error
queue.
(Note 5) √
:ENABle? Read the enabled messages. √
Notes:
1. Commands in this subsystem are not affected by *RST or SYSTem:PRESet. The effects of cycling power, *CLS and
STATus:PRESet are explained by the following notes.
2. Event registers — Power-up and *CLS clears all bits. STATus:PRESet has no effect.
3. Enable registers — Power-up and STATus:PRESet clears all bits. *CLS has no effect.
4. Error queue — Power-up and *CLS empties the error queue. STATus:PRESet has no effect.
5. Error queue messages — Power-up enables error messages and disables status messages. *CLS and STATus:PRESet have no
effect.

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%