The SNE1100x, SNE110Lx, and SNE1050x models each come with one Field Controller (FC) Bus connection. The SNE2200x model features two FC Bus connections. These connections use 4-pin removable, keyed terminal blocks that are labeled FC BUS-1 and FC BUS-2.
The FC Bus connections are isolated RS-485 ports that communicate at 2400, 9600, 19,200, 38,400, or 76,800 baud. You can use the FC Bus port to integrate the following field controller networks into the Metasys system:
- BACnet MS/TP FC Bus
- N2 Bus
- Modbus RTU
- M-Bus
Note: Each field controller integration has different protocols and
network requirements. Do not intermix MS/TP, N2, Modbus, or M-Bus devices on the same FC Bus
port.
The SHD (shield) connections on the FC terminal blocks are not connected to any earth ground connection. The FC Bus-1 and FC Bus-2 terminal blocks are not interchangeable.