Wireless fan-coil controller - MIDAM WFC01001

Wireless fan coil controller with three-stage fan speed and heating/cooling valves operation. It can work completely in autonomous mode, or thanks to integrated modbus map, to be integrated into a topology of any SCADA systems. The communication is based on the AES128 encrypted Midam KFP protocol, which allows to update the device firmware on a wireless basis. WRU01001 room unit is the HMI for WFC01001.

Three-step speed control of fans and valves
Can operate fully autonomously
Integrated Modbus map
Integration into PLC/SCADA supervisory systems

datasheet

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Function

The WFC01001 fan coil controller communicates with the room controller via a 868 MHz unlicensed band. Embedded AES 128-bit, provides the most secure encryption standard for wireless connections. The room and setpoint temperature transmitted from the room controller is calculated in the PI algorythm. The PWM modulation is applied for controlling radiator valves via device output triacs. The controller is designed to work in a non-aggressive environment, but requires no maintenance at all. It can be mounted using attached brackets to any flat surface (fcu body, installation panel) as well as on a standard DIN rail. High precision calibrated real time clock, backed up with internal battery allows to set a week schedule with up to six programs for a particular day. Control modes are Comfort, PreComfort, and Off. The controller has two digital inputs for the presence sensor (card reader, motion sensor) and window contact readouts. Both modes, NO (normally open) or NC (normally closed) can be set for valves. The fan stages are controlled automatically (according to the PID output or control deviation) or manually (if enabled during configuration). The controller features a native modbus map (also for WRU01001) with the direct read and write functionality. The modbus map is available in a separate document. All settings and configuration are also stored in a modbus register, directly in the device. Before using the device for the first time, it is necessary to pair it and it is recommended to perform individual configuration, especially to change the encryption password.

Application

Room control with four-pipe fan coil
Room control with two-pipe fan coil
Room control with cooling fan coils and radiators
Room control with heating convectors and cooling panels
wMbus protocol data acquisition
Wired and/or wireless integration into the SCADA systems

Pairing

Up to eight KFP or wMBUS wireless devices can be connected to one WFC01001 controller simultaneously. Usually, wireless gateway or configuration dongle is used to set up remote wireless devices. Use look-up function in software tool to display a list of all available devices in range and assign or adjust parameters based on wireless ID code for each single device. There is a comprehensive help section integrated in the software tool to provide support during the wireless device set up procedure.

SCADA system integration

The WFC01001 can be integrated into the SCADA system directly via the Modbus RTU (RS485) bus or via WCOM01, resp. WCOM51 wireless gateways.

Midam KFP Password change

Prior to the first use, the encryption password (default “MIKROKLIMA1234AB”) must be changed using the WUSB01 configuration dongle and the relevant software tool.

documents

midam-wfc01001-en-2507.pdf