Keithley 6487 Reference Manual

7-8 Triggering Model 6487 Reference Manual
Trigger model configuration — front panel
klqb See “SCPI Programming” (Table 7-3) for the SCPI commands to configure the
trigger model over the bus.
Press CONFIG and then TRIG to configure both the TRIG and ARM layers of the trigger
model.
klqb When done configuring the trigger level, press ENTER to confirm value and then
use the EXIT key to save changes and leave trigger model configuration.
Once in trigger model configuration mode, use the RANGE keys to display either the
TRIGGER layer or the ARM layer menus. Press ENTER to select the desired menu. Then
use the RANGE keys to display menu items. Use the cursor keys to key in values. A menu
item or value is selected by pressing ENTER. Use the EXIT key to exit from the menu
(saving all changes made).
Table 7-2
Trigger model menu structure
Menu Description
CONFIG Path to TRIG and ARM menus. Access by pressing
CONFIG and then TRIG.
- TRIG Path to TRIG layer sub-menus.
--COUNT
---INF
---FIN
Set TRIG measure count.
Specify an INFinite measure count.
Specify a FINite measure count: 1–2048.
--DELAY
---MAN
---AUTO
Set trigger delay.
Specify trigger delay: 0–999.9998 sec.
Enable auto delay.
--TRIG-OUT
---LINE
----TLINK
---EVENTS
----VMC
Configure output triggers.
Select the output trigger link line.
Set trigger link value: 1–6.
Select VMC (voltmeter complete) output trigger.
Enable/disable VMC (on or off).
--TRIG-IN
---SOURCE
----IMM
----TLINK
-----TLINK
-----EVENT
Path to control source.
Set the TRIG-IN control source.
Set control source to IMMediate.
Set control source to TLINK.
Set TLINK value: 1–6.
Enable (set to ONCE) or disable (set to NEVER).

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%