Models 707A And 708A Commands - Keithley 708B Reference Manual

Models 707B and 708B Switching Matrix Reference Manual

Models 707A and 708A commands

Models 707A and 708A commands
Command
An
Bn
Crc(,rc)..(,rc)
Dnnnnnn
Db,s
En
Fn
Gn
Hn
In
Jn
Kn
Lbbbb...X
Mn
Nrc(,rc)...(,rc)
Ovvv
Pn
Qn
Rn
Sn
707B-901-01 Rev. A / August 2010
Appendix B: Using Models 707A and 708A compatibility mode
Description
Edge for which an externally
generated pulse executes a
trigger
Select logic sense of matrix
ready
Close crosspoints in a setup
Set text on the display
Set digital output
Specify setup number
Enable or disable triggers
Output format
Front panel key
Insert blank setup
Self-test
EOI and hold off
Download setup
SRQ and Serial Poll Byte
Open crosspoint
Digital output
Clear crosspoints
Delete setup
Restore defaults
Programmable settle time
Differences in Models 707B and 708B
None.
Actual matrix ready signal may have different timing
characteristics. If a relay does not change state, the matrix
ready signal does not include the relay settle time.
Actual ready and matrix ready signals may have different timing
characteristics.
The Ready signal includes the relay settle time.
Subordinate units are not supported.
In the case of multiple commands, all crosspoints are closed
simultaneously.
Only available on Model 707B. The display character limit has
been increased to 20 and the text is displayed on the first line of
the VFD display.
Only available on Model 708B. The actual digital output settings
will not function for bits that are outside of the physical interface
specifications (see Digital interface
None.
None.
None.
Only Model 707A. This command has no effect and does not
issue an error message when used.
None.
There is no self-test for the Models 707B and 708B.
Actual ready and matrix ready signals may have different timing
characteristics. The Ready signal on the Model 707B or 708B
includes the relay settle time.
The Models 707A and 708A could hold off the GPIB bus on the
specific 'X' character. To increase performance, the Models
707B and 708B use a message-based system. Therefore, the
hold off has been changed to 'hold off on end of message'.
When the 'X' is at the end of the message, the functionality is
identical.
None.
Performing a self-test or pressing a key does not clear the SRQ
Ready bit.
Actual ready and matrix ready signals may have different timing
characteristics. The ready signal on the Model 707B or 708B
includes the relay settle time. Subordinate units are not
supported.
All crosspoints are opened. For example, for the command
"NA1NA2NA3", all three crosspoints are opened. All crosspoints
are opened simultaneously.
The actual digital output settings will not function for bits that are
outside the physical interface specifications (see
(on page B-2)).
None.
None.
None.
Works as intended in 70xB-VERSION.
For 70xA-VERSION, settle time is always zero (0).
(on page B-2)).
Digital interface
B-3