When the B420 or B426 has been programmed through the web interface and the setting; Panel Programming Enable has been set to NO, the B420 or B426 Ethernet Communicator module programming screen will look as displayed below with programming parameters not available for changing.
The card will need to be accessed again through the web interface and Panel Programming Enable must be changed to read YES.
Log into the Web-Browser and select Maintenance. Click on the drop-down arrow beside the field: Panel Programming Enable and change it to Yes.
When programming the B420 or B426 to be connected to a GV3 or older panel the web interface is used.
When programming the B420 or B426 to be connected to a GV4 panel, use keypad programming.