Ethernet data logger TCW220

TCW220 is an Ethernet data logger with MODBUS TCP/IP support, the right choice for remote automation.


TCW220 is an Ethernet data logger for general data acquisition applications. It has two analog inputs, with 10-bit resolution and two discrete inputs. It supports a 1-Wire interface for up to eight Teracom 1-Wire sensors – carbon dioxide, 0/20mA, AC/DC current, temperature, humidity, etc.) The Ethernet data logger also has two relays with normally open and normally closed contacts.

All monitored parameters can be logged on a previous set time interval and/or on alarm conditions. The memory is large enough for at least 36 days with records on every minute. The log file can be periodically uploaded on a dedicated server with HTTP Post.

XML/JSON file, with all monitored parameters, can periodically be uploaded on the dedicated server by HTTP Post. Like answer server can return commands for relay’s control. This is a way for building SCADA system.

The relays can be activated either remotely (WEB, SNMP, HTTP, MODBUS TCP/IP, etc.) or locally – from a status of monitored parameters. For every parameter email and SNMP trap for up to five recipients can be sent. Alarm alert also can be sent by HTTP Post with XML/JSON status files.


  • Stand-alone Ethernet data logger for up to 70000 records;
  • Password protected web based configuration and control;
  • 2 digital “dry contact” inputs;
  • 2 analog inputs with 0 to 10VDC range, with 10-bit resolution;
  • Multiplier and offset for analog inputs;
  • 2 relays with NO and NC contacts;
  • 1-Wire interface for up to 8 Teracom sensors;
  • SNMP v.2 support;
  • SNMP traps to up to 5 recipients like alarm alert;
  • MODBUS TCP/IP support;
  • TLS 1.0, TLS 1.1 and TLS 1.2 support;
  • e-mails to up to 5 recipients like alarm alert;
  • XML/JSON status files;
  • HTTP API commands;
  • NTP support;
  • Dynamic DNS support;
  • Periodical HTTP Post for client-server systems;
  • Remote firmware update.


  • Stand alone or system ethernet data logger
  • Heater or cooler control
  • Small to large SCADA systems
  • Ethernet data logger for storage facilities
  • Industrial process automation;
  • Industrial environmental monitoring;
  • Mushroom and winery environmental monitoring and control.


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