Fluke NetDAQ 2640A, Service Manual

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NetDAQ
Service Manual
5-12
Command Set 5-18.
The instrument RS-232 command set is shown in Table 5-7: RS-232 Command Set. The
calibration commands are described in more detail in Chapter 4. These are: CAL,
CAL_CLR, CAL_CONST, CAL_CONST?, CAL_REF, CAL_REF?, and CAL_STEP?.
The other commands are described in this chapter. The instrument does not accept the
calibration commands unless calibration mode is enabled. In calibration mode, the
instrument does not accept some non-calibration commands. It is expected that users will
make all calibration adjustments and exit calibration mode before performing calibration
verification. Calibration verification readings will be made in the slow reading rate,
which is the power-on and reset default, therefore no command is provided for setting
the rate.
Table 5-7. RS-232 Command Set
Command Description Cal Not Cal
*IDN? Identification query * *
*OPC? Operation complete query * *
*RST Reset * *
*TST? Self test query *
SELFTEST? Return current selftest results * *
CAL Start calibration procedure for indicated
function *
CAL? Return the identifier of any CAL procedure in
progress *
CAL_CLR Reset calibration constants to nominal value *
CAL_CONST? Query the value of a particular calibration
constant * *
CAL_REF Specify value to calibrate to (in place of default
reference value) *
CAL_REF? Query the present calibration reference value *
CAL_STEP? Calibrate and query the calibrated value of the
input *
FUNC Configure function, range, terminals for channel
1 *
FUNC? Query function, range, terminals for channel 1 *
MEAS? Trigger and query a measurement on channel 1 *
The RS-232 commands are described in this chapter using the following format:
•
Command: The command name and syntax.
•
Description: A description of the command.
•
Parameters: A description of the required and optional parameters.
•
Response: A description of data returned.
•
Restrictions: When the command is allowed/disallowed.
•
Notes: Any additional useful information.