Keithley 6517A User Manual

IEEE-488 Reference
3-144
3.24.6 :SOURce <name> :ARM[:SEQuence[1]][:LAYer[1]]:SOURce <name> Specify arm event control source
:ARM[:SEQuence[1]]:LAYer2:SOURce <name> Specify scan event control source
:TRIGger[:SEQuence[1]]:SOURce <name> Specify measure event control source
Parameters <name> = HOLD Hold operation in specified layer
IMMediate Pass operation through specified layer
RTCLock Select real-time clock as event (Arm Layer 1 only)
MANual Select manual event
BUS Select GPIB trigger as event
TLINk Select Trigger Link as event
EXTernal Select External Triggering as event
TIMer Select timer as event (not available for Arm Layer 1).
Query :SOURce? Query programmed control source.
Description These commands are used to select the event control source for the specified layer. With HOLD
selected, operation stops and waits indefinitely in the specified layer. While in HOLD, operation
can be continued by sending the :IMMediate command or the :SIGNal command. Keep in mind
however, that if the layer count is >1, HOLD is again enforced when operation loops back
around.
With IMMediate selected (do not confuse :SOURce IMMediate with :IMMediate), operation
immediately passes through the specified layer.
A specific event can be used to control operation through a layer. With BUS selected, operation
continues when a GPIB trigger (GET or *TRG) is sent. With TLINk selected, operation contin-
ues when an input trigger via the Trigger Link is received. With EXTernal selected, operation
continues when an External Trigger is received.
A real-time clock event is available for the arm layer (Arm Layer 1). With RTCLock selected,
event detection is satisfied at the programmed date and time allowing operation to continue on
in the Trigger Model. See paragraph 3.24.10 to set the date and time for the RTCLock control
source.
A TIMer event is available for the scan and measure layers. With TIMer selected for the speci-
fied layer, the event occurs at the beginning of the timer interval, and every time it times out. For
example, if the measure layer timer is programmed for a 30 second interval, the first pass
through the measure layer control source occurs immediately. Subsequent scan events will then
occur every 30 seconds. The interval for the timer is set using the :TIMer command.
3.24.7 :TIMer <n> :ARM:[SEQuence[1]]:LAYer2:TIMer <n> Set interval for scan layer timer
:TRIGger:[SEQuence[1]]:TIMer <n> Set interval for measure layer timer
Parameters <n> = 0.001 to 999999.999 Specify timer interval in seconds
DEFault 0.1 second
MINimum 0.001 second
MAXimum 999999.999 seconds
Query :TIMer? Query programmed timer interval
:TIMer? DEFault Query *RST default timer interval
:TIMer? MINimum Query lowest allowable timer interval
:TIMer? MAXimum Query largest allowable timer interval

Keithley 6517A Specifications

General

Brand	Keithley
Model	6517A
Category	Measuring Instruments
Language	English