Keithley 6512 Instruction Manual page 57

IEEE-488 Programming
Valid command strings
Device-dependent commands can be sent either one at a
time, or in groups of several commands within a single
string. Some examples of valid command strings include:
F0X Single command string.
F0K1R0X Multiple command string.
T6 X Spaces are ignored.
Typical invalid command strings include:
H1X Invalid command, as H is not one of the instrument
commands.
F9X Invalid command option because 9 is not an option of
the F command.
If an illegal command (IDDC), illegal command option (ID-
DCO), is sent, or if a command string is sent with REN false,
the string will be ignored, and an appropriate error message
will be displayed.
3-2
Table 3-1
Default conditions
Default
Mode value
Function F0
Range R0
Zero check C1
Zero correct Z0
Suppression N0
Trigger T6
Data format G0
Data store Q7
SRQ mode M00
EOI and bus hold-off K0
Terminator Y<CR><LF>
* Instrument status on power-up or after receiving DCL or SDC.
Default conditions
Command default conditions are summarized in Table 3-1.
Device-dependent command summary
Device-dependent commands that control the Model 6512
are listed in Table 3-2. These commands are covered in detail
in the following paragraphs.
REN must be true when sending device-
dependent commands to the instrument, or
it will ignore the command and display a
bus error message.
Controller programs
Refer to Appendix D for example programs that can be used
to send commands to the Model 6512.
Status*
Volts
Auto-range
Enabled
Disabled
Disabled
Continuous, external
Prefix, no suffix
Disabled
Disabled
Both disabled
<CR><LF>
NOTE