Quad loop universal controller (X2 OS) cabinet mounted

The TCX2 is a programmable universal controller with communication capabilities. Each control loop may use 2 PI sequences and 6 binary stages. The TCX2 comes with a built in RS485 communication interface that allows peer to peer communication with an operation terminal such as OPA2-(2TH)-VC.

Communication plug-in allow for integration of the controller into a network. These modules are described in their own manual. Currently available are plug-ins for BACnet and MODBUS. There is also a Wi-Fi and Ethernet communication option available which supports Modbus TCP and BACnet IP. An embedded webserver provides a web interface to access the controller in order to change the connection settings and to operate the controller.

Flexible application configuration is made with a parameter-setting routine using the standard operation terminal.

Complete parameter sets may be copied by use of an accessory called AEC-PM1 or exchanged with a PC using an RS485-USB converter, Wi-Fi or Ethernet communication and the EasySet program.


  • Refrigeration / air conditioning units
  • Air handling units
  • Chillers
  • Humidifying / dehumidifying
  • Pressure / pump systems
  • and many more…

Type Overview (see ordering for details)

Standalone With built-in display  BACnet / Modbus
over Wi-Fi
 BACnet / Modbus
over Ethernet
 BACnet / Modbus
over cable




  • 4 universally configurable control loops
  • Functions for dehumidifying, set point shift and cascade control
  • Multiple auxiliary functions: heat-cool auto changeover, automatic enable, set point compensation
  • Free heating and cooling with economizer function based on enthalpy or temperature
  • Differential, averaging, min and max functions, enthalpy and dew point calculations
  • Transmitter function for inputs and set points
  • BACnet MS/TP or slave MODBUS communication over RS485 RTU or ASCII
  • BACnet IP or Modbus TCP communication over Wi-Fi or Ethernet (Wi-Fi or Ethernet interface required)
  • Webserver that supports TCX2 operation trough browser or mobile devices (Wi-Fi or Ethernet interface required)
  • Peer to peer communication to optional X2 operation terminal OPxx-VC
  • 8 selectable universal inputs (VDC, mA, NTC)
  • 3 universal analog outputs (VDC, mA) and 6 relays with each a normally open contact
  • 8 freely assigned alarm conditions, selectable state of outputs on alarm condition
  • Power Cap protected real-time clock with 48hr power backup
  • 7-day programmable schedules, with options including change of set points and direct position of manual outputs
  • Password protected programmable user and control parameters
  • Clone parameter set with plug-in memory AEC-PM1 - easily transport application parameters to multiple controllers
  • Exchange data with PC using the EasySet tool


 Product Name

 Product No.


 TCX2-40863  40-110032  Controller standalone  PI-controller
 cabinet mounted
 with communication
 4 controll loops
 8 universal inputs
 6 relays
 3 analog outputs
 TCX2-40863-OP  40-110036  Controller with integrated operation terminal
 TCX2-40863-MOD  40-110077  Controller
 with Modbus RTU or ASCII communication
 TCX2-40863-OP-MOD  40-110078  Controller with integrated operation terminal
 and Modbus RTU or ASCII communication
 TCX2-40863-BAC  40-110079  Controller
 with BACnet MS/TP communication
 TCX2-40863-OP-BAC  40-110080  Controller with integrated operation terminal
 and BACnet MS/TP communication
 TCX2-40863-WEM  40-110117  Controller
 with Modbus TCP over Wi-Fi communication
 TCX2-40863-OP-WEM  40-110133  Controller with integrated operation terminal
 and Modbus TCP over Wi-Fi communication
 TCX2-40863-ETM  40-110118  Controller 
 with Modbus TCP over Ethernet communication
 TCX2-40863-OP-ETM  40-110134  Controller with integrated operation terminal
 and Modbus TCP over Ethernet communication
 TCX2-40863-WEB  40-110126  Controller
 with BACnet IP over Wi-Fi communication
 TCX2-40863-OP-WEB  40-110135  Controller with integrated operation terminal
 and BACnet IP over Wi-Fi communication
 TCX2-40863-ETB  40-110127  Controller
 with BACnet IP over Ethernet communication
 TCX2-40863-OP-ETB  40-110136  Controller with integrated operation terminal
 and BACnet IP over Ethernet communication



X2-Operation Terminals
Remote and built-in operation terminals
Temperature Sensors
Sensing elements or accessories for temperature sensors
AEI-4UI - Input Extension
Input extension for X2 controllers
AEC-PM1 - Memory
External memory for parameter sets for TCX2-series controls
AEX-BAC - BACnet Plug-In
Communication Plug-In for BACnet MS/TP communication
AEX-MOD - Modbus Plug-In
Communication Plug-In for MODBUS slave communication
AMM-1 TCX2 - Panel Mounting Kit
Panel mounting kit for TCX2 - series controller
AEC-SMA - Wi-Fi Antenna Cable Kit
For controllers with external (not built-in) Wi-Fi antenna
AEC-USB - USB to RS-485 Converter Cable Kit
For programming X2-devices with EasySet tool


Operation Manual

Install Sheet

Application Notes