The Rosemount 2160 Field Communication Unit is a data concentrator that continuously polls data from field devices via the Rosemount 2410 Tank Hub. The 2160 stores data in a buffer memory. Whenever a request for data is received, it can immediately send data from a group of tanks from the updated buffer memory.
The 2160 acts as a slave on the group bus and as a master on the field bus. The unit has six communication ports. The ports can be individually configured as either group bus ports or as field bus ports. There are three possibilities:
4 field bus ports, 2 group bus ports.
3 field bus ports, 3 group bus ports.
2 field bus ports, 4 group bus ports.
Each field bus can connect maximum 16 devices (however max. 8 are recommended).