Fluke 2680A Service Manual page 165

This command returns an execution error if no cal procedure is active.
This command returns a device dependent error if an internal error such as measurement timeout is
detected.
If the CAL_STEP? command completes successfully, the "calibrated value" returned is the reference value.
If the command fails because the measured reading is outside of the specified limits, the raw measurement
is returned.
A device dependent error is returned if an internal error such as a Guard Crossing error, measurement
timeout, or a configuration failure is detected. No value is returned in this case.
This command sets the EST_BUSY bit in the error status register while changing the device configuration.
The scan queue is also cleared.
Command: CAL_DATE?
Description: Query the calibration date for a particular module
Parameters: <module number> = integer 1 - 6
Response: MM/DD/YYYY HH:MM:SS.000, ie, 4/5/2002 09:06:32.000
Restrictions: None.
Notes: None.
Command: FUNC <channel>, <function> [, <range> [, <terminals>] ]
FUNC <channel>, TC, <thermocouple type>, <check OTC flag>
FUNC <channel>, THERM, AUTO, <terminals>, <coeff. a> <coeff. b> <coeff. c>
FUNC <channel>, RTD, AUTO, <terminals>, <R0 value>, [alpha value]
Description: Configure the measurement function, range, and number of terminals for a channel.
Parameters:
Response: None.
Restrictions: Not allowed in calibration mode.
<range> and <terminals> may not be specified with <function> = OFF.
<terminals> may not be specified with <function> = V dc, V ac, or FREQ.
<terminals> must be specified with <function> = OHMS.
<range> must be specified for V dc, V ac, and OHMS.
<channel> = 1xx, 2xx, 3xx, 4xx, 5xx, 6xx (where xx = 01 – 20)
<function> = OFF, V dc, V ac, OHMS, FREQ, TC, THERM, RTD
<range> = 1, 2, ... 5, AUTO
<terminals> = 2 or 4 for OHMS
<thermocouple type> = J, K, ...
<check OTC flag> = 0: don't check; 1: check
<coeff. a> <coeff. b> <coeff. c>
<R0 value>, [alpha value]
Diagnostic Testing and Troubleshooting
Using the RS-232 Interface
6
6-19