TCW280 Analog and Digital output module

TCW280 Analog and Digital output module

SKU: TCC-028

TCW280 is a MODBUS TCP/IP module with 2 analog voltage or current loop outputs, 4 open drain outputs with PWM and ON/OFF modes and 2 relays with normally open and normally closed contacts. 

  • Manufacturer: Teracom
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Analog output module supports two channels with voltage or current loop modes. The channel mode is WEB interface configurable. The available choices are – 0-20mA, 4-20mA, 0-24mA, 0-5V and 0-10V. Both channels have 12-bit resolution.

The device has 4 open drain outputs. All they are configurable either as standard digital outputs (On/Off) or as PWM outputs. In PWM mode, the outputs supply up to 2000Hz with 10-bit resolution. Analog outputs and open drain outputs are galvanically isolated from the module’s power supply. The isolation between the two parts is 1000VDC.

The module has also 2 relays with normally open and normally closed contacts. The relays can be activated either through the WEB interface or through some of the supported M2M protocols – SNMP, HTTP API, and MODBUS TCP/IP.

The device supports an advanced schedule functionality. The four schedules can be used for single (one-time) or repetitive (weekly) tasks. The resolution of the time period is 100mS. The embedded RTC (real-time clock) together with time server synchronization ensures high accuracy when executing the scheduled tasks. The schedules can activate automatically either relays or open drain outputs.

  • 2 analog voltage or current loop outputs with 12-bit resolution;
  • 4 open drain outputs with PWM and ON/OFF modes;
  • 2 relays with normally open and normally closed contacts;
  • MODBUS TCP/IP support;
  • SNMP v.2 support;
  • SNMP traps to up to 5 recipients like alarm alert;
  • Password protected WEB based configuration and control;
  • Periodical HTTP Post for client-server systems;
  • XML/JSON status files;
  • HTTP API commands;
  • NTP support;
  • Dynamic DNS support;
  • Back/restore for easy device settings multiplications;
  • Remote firmware update over the WEB interface.
    • SKU
    • Weight
      0.2 kg
    • Dimensions (L x W x H)
      13 x 11 x 5 cm

Power Requirements:

  • Power Supply: 10 to 32VDC
  • Current Consumption: 220mA @ 12VDC (all relays are on and both analog outputs are at 24mA)

Analog Outputs:

  • Isolation: Isolated (1000V)
  • Type: Single ended
  • Resolution: 12 bits 
  • Mode: Voltage or Current loop (WEB interface selectable)
  • Ranges: 0/5V, 0/10V, 0/20mA, 4/20mA, and 0/24mA 
  • Accuracy: ±1%  

Digital Outputs:

  • Isolation: Isolated (1000V)
  • Type: Open drain
  • Maximum drain voltage: 24VDC
  • Maximum drain current: 0.3A
  • Mode: ON/OFF or PWM (WEB interface selectable)
  • PWM resolution: 10 bits
  • PWM frequencies: 1, 5, 10, 50, 100, 500, 1000, and 2000 Hz

Relay Outputs:

  • Type: Form C (N.O. and N.C. contacts) 
  • Contact current rating: 0.5 A @ 24 VDC, 30 VAC (resistive load)
  • Initial insulation resistance: 100MΩ (min.) @ 500 VDC 
  • Mechanical endurance: 10 000 000 operations  
  • Electrical endurance: 100 000 operations @ 0.5 A resistive load 
  • Contact resistance: 100MΩ max. (initial value) 
  • Pulse output: 0.1 Hz at rated load


  • Operating Temperature: -10 to 55°C
  • Mounting: Wall and DIN rail
  • Dimensions: 115 x 90 x 40 (mm)
  • Weight: 170g

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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