Anritsu Field Master Pro MS2090A - A-9 System Override

A-9 System Override Instrument Notifications and Troubleshooting
A-26 PN: 10580-00444 Rev. U MS2090A UG
A-9 System Override
In the event that the instrument does not respond to SCPI commands (due to circumstances like a long sweep
used in conjunction with *OPC?) and needs to be reset remotely, the system override feature can be used.
System override can be accessed through TCP port 8001 of the instrument. All commands except a password
reset will require the instrument’s password to be sent. The default password for an instrument is the MAC
address interleaved with the word “system” between MAC address pairs. As an example, an instrument with
the MAC address “1a:2b:3c:4d:5e:6f” will have a default password of “1as2by3cs4dt5ee6fm”. Currently, system
override supports the commands as described below:
1. Reboot the instrument:
To reboot the instrument, send the following string to the instrument through port 8001:
“force_reboot,<instrument_password>”
Replace <instrument_password> with the password of the instrument. After the command has been
sent, the instrument will respond with “ok” if the command has been successfully processed. If the
password is incorrect, “password_match_fail” will be returned.
2. Set a new password:
To set a new password for the instrument, the following string should be sent through port 8001:
“change_password,<old_instrument_password>,<new_instrument_password>”
Note that the max length of a password is 50 characters. If the new password has been successfully set,
“ok” will be returned. If the password is too long, a “password_over_50_characters_fail” will be
returned. If the old password does not match, a “password_set_fail” message will be returned.
3. Reset the password:
In the case where the system override password needs to be reset to default, the following command can
be sent through port 8001:
“reset_password”
Note that this command DOES NOT require the instrument password. If the password has been
successfully reset, “ok” will be returned.
4. Disconnect SCPI connections:
This command causes all currently established SCPI connections (on TCP port 9001) to be disconnected.
reset_scpi_connection
It can be used to immediately clean up connections that were left open due to network interruption (e.g.
close handshake packets were dropped, client thinks it is disconnected but the instrument thinks the
connection is still there) or to establish sole control of an instrument by forcing all other clients to
reconnect. This command is automatically executed when secure mode is turned on.
If an improperly formatted command is sent to the instrument, a “command_match_fail” will be sent back.
To use dbutil:
1. Open a command window in Windows.
2. Enter the command:
dbutil /f ip_address where ip_address is the address of Field Master Pro. Then the DNS name can be used
instead of the ip_address.