Keithley 708B, Справочное руководство

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Section 5: Remote commands Models 707B and 708B Switching Matrix Reference Manual
5-26 707B-901-01 Rev. A / August 2010
Service request configuration
DDC TSP equivalent command Description
M0 status.request_enable = 0 Disable SRQ
M8
No corresponding command SRQ on Matrix Ready
M16 No corresponding command SRQ on Matrix Ready
M32 status.request_enable =
status.ERROR_AVAILABLE
SRQ on error
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
digio functions and attributes (on
page 5-9) section.
Digital I/O control
DDC TSP equivalent command Description
Onnn
Db,s
digio.writeport(data)
or
digio.writebit(bit,data)
Sets states of digital I/O
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
channel functions and attributes (on
page 5-5).
Additional channel settling time
DDC TSP equivalent command Description
Sn channel.setdelay(channelList,value) Additional settling time
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 channel functions and
attributes (on page 5-5).
Card settling time
DDC TSP equivalent command Description
U6 No corresponding command Send longest settling time
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
Scanning and triggering (on page 3-1).