User guide

Communication Capabiliites
890 USE 108 00 August 2001 83
Communication
Parameters Slide
Switch-Bridge
Mode
Bridge mode allows you to access nodes on a Modbus Plus network from a Modbus
master device (connected to the standard Modbus port). To set the Modbus Plus
bridge mode for port 1 of the A984-145, and E984-245/255 Controllers, set the slide
switch to default position, the controller’s bridge mode is automatically enabled.
When in the memory position (MEM), bridge mode can be enabled or disabled in the
Modbus port parameter settings of the controllers configuration table. When bridge
mode is enabled the port always uses the Modbus Plus address setting.