Set Up Remote Connections; Unlock Calibration - Keithley DMM7510 Calibration Manual

Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual

Set up remote connections

For detail on remote communications, refer to the Model DMM7510 Reference Manual section
"Remote communications interfaces."
To perform calibration, set up remote communications as follows:
1. Connect the Model DMM7510 to the IEEE-488 bus of the computer using a shielded IEEE-488
cable, over the LAN, or directly to a computer through the RJ-45 port using a cross-over cable, or
through a USB device.
2. Make sure the primary address of the Model DMM7510 is the same as the address specified in
the program that you will be using to send commands (the GPIB default address is 16; the LAN
default port number is 23).
3. Turn the TSP
localnode.prompts = localnode.ENABLE
localnode.showevents = 0
4. Before the start of each calibration step, clear the event log of any errors using the following
command:
eventlog.clear()
5. At the end of each step, using the following commands to read any error messages:
code,message,severity = eventlog.next()
error messages.
print('Error Code =', code)
print('Error Message =', message)
print('Error Severity =', severity)
6. Send each calibration command with print ("done") appended to allow the program to know
when operation is complete.
7. Some calibration steps may take up to five minutes to perform, so adjust the communication time-
out setting to prevent time-out errors.

Unlock calibration

To adjust calibration, you must unlock it by sending the calibration password:
cal.unlock("KI000CAL")
KI000CAL is the default password. You can change the password. Refer to
4-17) for details.
DMM7510-905-01 Rev. A / April 2015
®
prompt on and disable showing errors by sending the following commands:
Section 3: Calibration
-- Set variables to print the
cal.password (on page
3-5