TCW241 - Ethernet Digital IO, Voltage, Temperature, Humidity Alarm and Control

TCW241 - Ethernet Digital IO, Voltage, Temperature, Humidity Alarm and Control
Our Price:  £159.00(£190.80 Inc. VAT)
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Analogue Inputs:  4
Digital Inputs:  4
Digital Outputs:  4
Temperature Inputs:  8
Humidity Inputs:  8



5 in stock, immediate despatch

The TCW241 is an Ethernet control unit with 4 digital inputs, 4 relay outputs, 4 analogue inputs and a 1-Wire interface for up to 8 x 1-Wire sensors. The relays can be activated manually either from a web browser or from commands issued over the LAN or automatically on signal input alarm or pre-programmed timed basis. The TCW241 can also send an email alert on digital or analogue input alarm conditions. Supports MODBUS TCP/IP, SNMP.

Special Offer:  Discounts of 7%, 10%, 12.5% and 15% are available when you order 10, 25, 50 and 100 items or more of this product.

  • 4 digital inputs with "dry contact" and "logic level" modes
  • 4 analogue inputs with 0 to 60VDC range, 0.01V resolution
  • 4 relays with NO and NC contacts
  • Relay rating: 30VAC, 24VDC, 3A
  • 1-Wire support for up to 8 1-wire temperature/humidity sensors
  • SNMP traps on alarm
  • e-mail on alarm
  • XML and HTTP API commands
  • MODBUS TCP/IP support
  • Android and Apple IOS Apps
  • NTP protocol support
  • Push mode for client-server systems
  • Real time clock for scheduled time/date control
  • Power: 8-32VDC at 300mA
  • Dimensions: 145mm x 90mm x 40mm
  • Operating temperature: -20°C to +70°C
  • DIN Rail mount enclosure

The TCW241 is an Ethernet I/O module. It provides four digital inputs and four analog inputs. Its 1-Wire interface suppotrs up to eight sensors like temperature, humidity, CO2, AC/DC current, 4/20mA etc. The Ethernet I/O module has real-time clock (RTC) with time server synchronization (NTP) for advanced relay scheduler. It can be used for one-time or repetitive (weekly) tasks to turn on/off relays at previous set times.

The TCW241 can initiate a connection (HTTP Post) to remote dedicated servers. The payload of this post is XML or JSON file, with current values of monitored parameters. HTTP post can be send periodicaly or on previous set alarm conditions.

The relays of Ethernet I/O module can be activated either remotely or locally. So called remote activation includes friendly WEB interface or M2M protocols – MODBUS TCP/IP, SNMP and HTTP API. The local activation is possible from scheduler, status of single parameter or by custom made functions. They can include up to four parameters..

The TCW241  has a built-in web server that provides simple web  interface. The device  can be accessed directly, using a standard web browser, installed on users’ computer or smart phone.

Online Demo >> (admin, admin)

TC Monitor Software

TC Monitor is easy to use Windows application for monitoring and control of TCW products. TC Monitor can collect and display data from controllers installed in different locations (sites). The collected data is stored in SQL database and can be displayed or exported in MS Excel format for further analysis. TC Monitor has a simple web interface, which enables easy and fast configuration. Monitored parameters can be 1-wire sensors, digital and analog inputs and relay outputs.

The free version of TC Monitor provides 10 credits, this means up to 10 different parameters can be monitored and logged. More Information >>

Optional Software


ProfiLab-Expert is a low cost graphical programming software package for data acquisition and control applications. No programing experience is needed, programs are written by connecting function blocks together with wires. Professional user panels can be designed with custom controls, and the whole program can be compiled into a stand-alone executable file, with no run-time penalties.

More Information >>


User Manual >>

TCW Discover Utility >>

SNMP MIB Table >>

TC Monitor Manual >>

TC Monitor Download >>


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