The MC2-FC is a controller that can control, monitor and register the temperature, humidity and ventilation of cooling and storage cells. The controller is very suitable for the control of fruit storagecells, but it can also be used for many other control applications.

The controller has Pt1000 temperature sensor inputs, digital inputs and relay outputs that are freely configurable. The inputs are used to supply the controller with the measurements and external data required for the control processes. The controller uses these inputs in combination with the control settings (setpoints, parameters, etc.) to calculate the control values. The control values are transmitted by means of relays to the processes to be controlled. Multiple controllers can be connected to each other through a network (RS485 or Ethernet, depending on the mode) so that they can exchange technical control data. In this way, they can be combined to create an integrated control system with mutually coordinated control actions, while retaining their autonomous operation in the event of network malfunctions. The controller supports two modes: the FC mode (standard) and the MC mode. In the FC mode, the controller functions in the same way as the FC785-PC controllers.

The controller can work together with FC785-PC controllers and other MC2-FC controllers through the RS485 Alfanet. In the FC mode, has the controller the same parameters as the FC785-PC controller.

There are two difference between the MC2-FC in FC mode and the FC785-PC:
· The MC2-FC uses 2-conductor Pt1000 sensors instead of 3-conductor Pt100 sensors.
· The MC2-FC cannot be operated with the Alfanet PC program. Instead, the VDH Alfa Server Program (VASP) is now available. That program can be used to operate both the MC2-FC controllers and the FC785-PC controllers (from software version 2.10).

In the MC mode, the controller can work together with MC3-FRUIT and MC3-COOL controllers
through the Ethernet. This mode is described in another user guide. It is possible to switch between the two modes using an internal web page (see section 5.2).The controller can be operated using the touchscreen. Remote operation is possible using the VASP. VASP provides access to the advanced control functions such as registrations, alarm handling settings, etc. The controller has 5 temperature sensor inputs (which can also be used as digital inputs) and 5 relays. If more inputs or relays are necessary, the controller can be expanded with an optional 907.100054 MC3-EM [1Do12,1Rth16] extension module. That adds 11 temperature sensor inputs and 12 relays to the controller.