Cabinet mounted dual loop communicating PI-universal controller (X2 OS)

The TCI2 is a programmable universal controller with communication capabilities. Each control loop may use 2 PI sequences and 2 binary stages. The TCI2 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-PM2 or exchanged with a PC using an RS485-USB converter, Wi-Fi or Ethernet communication and the EasySet program.


  • Refrigeration / air conditioning units
  • Ventilators
  • Humidifying / dehumidifying
  • Pressure / pump systems
  • and many more…

Type Overview (see ordering for details)

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




  • 2 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 TCI2 operation trough browser or mobile devices (Wi-Fi or Ethernet interface required)
  • Peer to peer communication to optional X2 operation terminal OPxx-VC
  • 4 selectable universal inputs (VDC, mA, NTC, PT1000) and 2 analog outputs (VDC, mA)
  • 2 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-PM2 - easily transport application parameters to multiple controllers
  • Exchange data with PC using the EasySet tool


 Product Name

 Product No.


 TCI2-204.202UC-OP   40-110115   Controller with display, standalone  PI-universal controller
 cabinet mounted
 with communication
 2 controll loops
 4 universal inputs
 2 relays
 2 analog outputs
 TCI2-204.202UC-OP-L  40-110114  Controller with display, standalone with line voltage
 TCI2-204.202UC-MOD  40-110107  Controller with Modbus RTU or ASCII communication
 TCI2-204.202UC-OP-MOD  40-110109   Controller with display 
 and Modbus RTU or ASCII communication
 TCI2-204.202UC-OP-MOD-L  40-110110   Controller with display and Modbus RTU or
 ASCII communication with line voltage
 TCI2-204.202UC-BAC  40-110111   Controller with BACnet MS/TP communication
 TCI2-204.202UC-OP-BAC  40-110113  Controller with display
 and BACnet MS/TP communication
 TCI2-204.202UC-WEM  40-110123   Controller with
 Modbus TCP over Wi-Fi communication
 TCI2-204.202UC-WEM-L   40-110122   Controller with Modbus TCP/IP over Wi-Fi 
 communication with line voltage
 TCI2-204.202UC-ETM  40-110124   Controller with
 Modbus TCP over Ethernet communication
 TCI2-204.202UC-WEB   40-110131   Controller with
 BACnet IP over Wi-Fi communication
 TCI2-204.202UC-WEB-L   40-110130   Controller with BACnet IP over Wi-Fi 
 communication with line voltage
 TCI2-204.202UC-ETB  40-110132   Controller with
 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-PM2 - Memory
External memory for parameter sets for X2-series
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-2 TCI-C - Panel Mounting Kit
Panel mounting kit for TCI-C - 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