Confidential
Page 13
Firmware Updates (continued)
Once you have connected with the MMXI controller and the “Connected” checkbox remains
checked, you may issue commands using the “COMMAND” edit box. Commands may be typed
and edited within the “COMMAND” edit box and nothing will be sent to the controller until the user
presses the “ENTER” key on the PC keyboard. Once the “ENTER” key is pressed, the utility
program will clear the “RESPONSE” edit box and then send the string of text in the “COMMAND”
edit box to the controller. No carriage return character will be appended to the data sent to the
controller unless the “Add <CR>” checkbox is checked. The controller will accept a semicolon
character as well as a carriage return character as the terminating character for commands.
To update the firmware on the MMXI controller using the utility program, first ensure you are
properly connected to the controller and able to send commands and receive responses without
any errors. Then close any other programs running on the PC. This will reduce the risk of
communication failures while loading the new firmware.*
* If communication failures occur during the process of loading new firmware onto the
MMXI controller, it is possible for the controller to get to a state where it no longer
functions and will need to be sent to Multimetrixs for repair. Please ensure that your
RS232 cables and port are functioning without any problems before proceeding with a
firmware update.
With the “Connected” checkbox checked, click on the menu item “FILE / Download Firmware”.
This will start the download process. The touchscreen display on the controller will go blank as
the download is started. Messages will be displayed in the status box at the bottom of the main
window of the utility program as the loading proceeds. When the firmware loading completes
successfully, the status box will display the message “Firmware Loaded!”. If it encounters an
error, it will indicate the failure. Do not interrupt the download process. Wait until it either finishes
successfully or fails.
Once the firmware has completed loading successfully, wait for the touchscreen display on the
controller to display the main screen with the “SAMPLE” button and then try to connect again by
checking the “Connected” check box on the utility program. Make sure the “Connected” check
box remains checked and then click on the menu item “FILE / Download 4DGL”. This will start
the loading of the second portion of the firmware which handles the touchscreen display interface.
When the loading completes successfully, the message “4DGL Download complete!” will be
displayed in the status box at the bottom of the main window of the utility program. If there is an
error, try again by checking the “Connected” checkbox and selecting the “FILE / Download 4DGL”
menu item again. Once this portion of the download completes successfully, you will need to
cycle the power on the controller before using the controller.
Please contact Multimetrixs if you are having difficulties understanding this procedure as it is
important not to corrupt the controller’s loading process.
