Appendix B: Using Models 707A and 708A compatibility mode Models 707B and 708B Switching Matrix Reference Manual
B-4
707B-901-01 Rev. A / August 2010
Tn
Trigger source
The trigger source 0/1 (GPIB Talk) is not available for the
Models 707B and 708B. The factory default address for the
Models 707B and 708B is 16. The trigger source 8/9 (front panel
key) is not implemented.
Un
Instrument Config/Status
For U0, the last pressed key always reads 05.
For U1, the Self-Test, PowerUp, and Master/Subordinate Loop
bits always read zero.
For U4, the number is always zero.
For U5, the subordinates always read zero.
For U7, though compatible bits are returned, the actual digital
input settings read zero for those bits outside of the physical
interface specifications (see digital input/output difference).
For U8, the test relay is not supported and always reads 15.
Vabcdefgh
Make before break
None.
Wabcdefgh
Break before make
None.
<cmd>X
Execute None.
Yn
Change line terminate
None.
Zm,n
Copy setup
None.
<space>
Model and version
Sending a <space> only in a message causes the unit to return
the model and version number.
*idn?
Unit identification
For compatibility, the version number is A03 (version number of
DDC compatibility, not the firmware version). For example, on
the Model 707A, the return string is "707A03".
There is a limit of 64 commands per execution.
For more detail on the Model 707A and 708A commands, see the appropriate instruction manual:
•
For the Model 707A: 707A-901-01 (A - Sep 1998)(Instruction).pdf
•
For the Model 708A: 708A-901-01 (A - Sep 1998)(Instruction).pdf
These instruction manuals are available (http://www.keithley.com).
