Keithley 3730 User Manual

Series 3700
System Switch/Multimeter User's Manual Section 4:
Closing and Opening Switching Module Channels
Document Number: 3700S
-900-01 Rev. A / August 2007 4
-7
Close/open key operation
The front panel CLOSE and OPEN keys operate in the same manner as one of the following:
 channel.close and channel.open commands
 dmm.close and dmm.open commands
The operation of the keys depend on the selected channel or channel patterns function
association.
To have the keys work as channel.close and channel.open:
 Make sure the DMM function of the DMM configuration associated with the selected
channel or channel pattern is "nofunction."
To have the keys work as dmm.close and dmm.open:
 Make sure the DMM function of the DMM configuration associated with the selected
channel or channel pattern is not "nofunction" (for example, DC volts).
Channel attributes
NOTE Unless noted, attributes are not common to backplane relays or channel patterns.
Each switching channel has the following set of associated attributes:
label: a string representing the channel (maximum length: 20 characters). Once a unique label
is assigned to a channel, it may be used to refer to that channel. The label for a channel cannot
match the name of an existing pattern.
delay setting: additional delay to incur after the relay settles. Therefore, the total delay for
channel operation is user delay + relay settling time.
backplane relays: list of backplane relays to control when performing a switching (channel
logical device action) close or open operation on a single channel. For channel patterns, the
image must include the backplane relays that need to be controlled during the channel operation
since patterns don't have a separate attribute setting for backplane relays (Channel pattern
operation (on page 4-2)).
pole setting: pole setting for mux (multiplexer) channels that indicates if the paired mux channel
should be included when doing a close or open operation on channel. Changing the pole setting
on a channel deletes any existing channel patterns containing that channel. Putting a channel in
4-pole operation will cause the associated paired channel to become unavailable for switching
operation. For example, assume 3003 is set to 4-pole and its paired channel is 3033. Now, 3033
is unavailable for its own channel attribute settings and doing switching (channel logical device
action) closes and opens. If Channel 3033 is specified it will generate a settings conflict with
paired channel specified error message.
forbidden setting: indicates if the channel is forbidden to close. A backplane relay may be
marked as forbidden to close. Marking a channel as 'forbidden to close' deletes any existing
channel patterns containing that channel.

Keithley 3730 Specifications

General

Brand	Keithley
Model	3730
Category	Multimeter
Language	English