Keithley 3700 series Reference Manual page 304

Section 9: Instrument Control Library (ICL)
scan.background
Remarks
Also see
Example
scan.bypass
Attribute
Usage
Remarks
Also see
Example
9-160
This command specifies the reading buffer to use during scanning and the scan is
executed in the background. The reading buffer will store the reading and
accompanying attributes desired for the scan. This command starts the scan. Prior to
using this command use scan.create and scan.add to setup scan elements.
Since scan is running in the background use scan.state function to see current status of
scanning.
An error will be generated if the reading buffer does not exist or the parameter is not a
reading buffer.
scan.add (on page 9-157)
scan.create (on page 9-160)
scan.execute (on page 9-162)
scan.state (on page 9-167)
To use reading buffer rbbuff1 and run scan in background:
scan.background(rbbuff1)
Bypasses the first channel in the scans requirement for scan.trigger.channel.stimulus
settings.
To read the bypass state:
bypass = scan.bypass
To write the state of the beeper:
beeper.enable = beeperstate
bypass: The state of the bypass. Set bypass to one of the following values:

OFF or 0: Bypass disabled

ON or 1: Bypass enabled (default)
When scan.bypass is ON (default), once the scan.trigger.arm.stimulus is satisfied, the
first channel of the scan closes regardless of the scan.trigger.channel.stimulus
settings. For channels other than the first, the channel stimulus must be satisfied
before the channel action takes place.
With bypass OFF, every channel (including the first) needs to have the
scan.trigger.channel.stimulus settings satisfied before the channel action occurs for
that step.
scan.trigger.arm.stimulus
scan.trigger.channel.stimulus
To display the present bypass state:
print(scan.bypass)
Series 3700 System Switch/Multimeter Reference Manual
(on page 9-168)
(on page 9-170)
Document Number: 3700S-901-01 Rev. A / August 2007