Tektronix KEITHLEY 707B, Справочное руководство

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Models 707B and 708B Switching Matrix Reference Manual Appendix B: Using Models 707A and 708A compatibility mode
707B-901-01 Rev. B / January 2015 B-3
Models 707A and 708A commands
Models 707A and 708A commands
Command Description Differences in Models 707B and 708B
An
Edge for which an externally
generated pulse executes a
trigger None.
Bn Select logic sense of matrix
ready 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.
Crc(,rc)..(,rc)
Close crosspoints in a setup 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.
Dnnnnnn Set text on the display 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.
Db,s
Set digital output 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 (on page B-2)).
En
Specify setup number None.
Fn
Enable or disable triggers None.
Gn
Output format None.
Hn Front panel key
Only Model 707A. This command has no effect and does not
issue an error message when used.
In Insert blank setup None.
Jn Self-test There is no self-test for the Models 707B and 708B.
Kn EOI and hold off 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.
Lbbbb…X
Download setup None.
Mn
SRQ and Serial Poll Byte Performing a self-test or pressing a key does not clear the SRQ
Ready bit.
Nrc(,rc)...(,rc
)
Open crosspoint 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.
Ovvv Digital output
The actual digital output settings will not function for bits that are
outside the physical interface specifications (see
Digital
interface (on page B-2)).
Pn Clear crosspoints None.
Qn Delete setup None.
Rn Restore defaults None.
Sn Programmable settle time Works as intended in 70xB-VERSION.
For 70xA-VERSION, settle time is always zero (0).