Keithley 708B Reference Manual page 187

Section 5: Remote commands
Service request configuration
DDC TSP equivalent command
M0
No corresponding command
M8
M16 No corresponding command
M32
Digital I/O control
The Model 707B or 708B instrument provides increased flexibility, with fourteen digital I/O lines
(compared to the Model 707A, which has eight input lines and eight output lines, and the Model 708A,
which has sixteen input lines and sixteen output lines). It is also possible to write to the digital I/O port
simultaneously or on a per-bit basis. For more information, see the
page 5-9) section.
Digital I/O control
DDC
Onnn
Db,s
Additional channel settling time
The Model 707A or 708A had the ability to add relay settling time to the system after a channel closes
or opens. The Model 707B or 708B improves on the settling time and allows you to apply additional
settling delay on a per-channel basis. For more information, see
page 5-5).
Additional channel settling time
DDC
Sn
Retrieve card settling time
Although base channel settle time cannot be returned, additional delay time that was specified with
the channel.setdelay(channelList,delay) command can be returned using:
channel.getdelay("allslots")
Delays for each channel in csv format are returned. For more information, see
attributes (on page 5-5).
Card settling time
DDC
U6
Trigger source control
The DDC commands in the following table control the trigger source for advancing the relay setups.
The Model 707B or 708B instrument provides similar functionality, but omits triggering on talk and
triggering on X. For more information, see
5-26
status.request_enable = 0
status.request_enable =
status.ERROR_AVAILABLE
TSP equivalent command
digio.writeport(data)
or
digio.writebit(bit,data)
TSP equivalent command
channel.setdelay(channelList,value)
TSP equivalent command
No corresponding command
Models 707B and 708B Switching Matrix Reference Manual
channel functions and attributes
Scanning and triggering
Description
Disable SRQ
SRQ on Matrix Ready
SRQ on Matrix Ready
SRQ on error
digio functions and attributes
Description
Sets states of digital I/O
Description
Additional settling time
channel functions and
Description
Send longest settling time
(on page 3-1).
707B-901-01 Rev. A / August 2010
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