WTD850C Wifi Modbus TCP - 16 Digital Outputs with PWM

WTD850C Wifi Modbus TCP - 16 Digital Outputs with PWM
Our Price:  £169.00(£202.80 Inc. VAT)

Digital Outputs:  16



Special order, 7-10 days

The WTD850C is a Wifi Modbus TCP unit with 16 opto-isolated transistor outputs with Pulse Width Modulation support. Part of a no-frills industrial range featuring 3-way isolation, DIN rail mount with the ability to stack modules one on top of another, watchdog with settable output state condition on comms fail. Compatible with all SCADA software talking Modbus/TCP.

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.

  • 16 x open-drain transistor outputs - rated 50V @ 500mA
  • Pulse Width Modulation (PWM) output to 1kHz
  • 3kv opto-siolation
  • Wifi 802.11b, 802.11g, 802.11n
  • Access Point or Station Modes
  • Typical Range: 100m line of sight
  • Protocol - Modbus/TCP
  • LED Indicators for Power, Status, Comms
  • Watchdog
  • 3-way Isolation between Power Supply and IO
  • Operating Temperature: - 20 to 70º C
  • Power: 10 to 48VDC
  • Stub antenna included via standard SMA connector
  • DIN Rail mount - stackable
  • Dimensions - 98mm x 106mm x 47mm


The WTD8XXX series are a series of I/O data acquisition and control modules based on wireless Wi-Fi using the Modbus TCP communication protocol.
They can connect to a SCADA system, HMI or mobile phone directly or via a wireless Wi-Fi router or wireless AP. Users can access the configuration interface and operate the monitoring function via any web browser or by using the WTDUtility.


Flush mounted or fitted to a a standard DIN rail, multiple units can be stacked on on top of each other to provide a compact installation.


A watchdog timer can force outputs to preset states on LAN fail (can be disabled)


Industrial grade isolation between the Power supply, IO and Ethernet port


The unit is configured using the free WTDUtility Software. This can be used to set the units' IP address, to set the watchdog alert transistor output states and to test the outputs or set the PWM details.


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 >>



DAQFactory is a low cost data acquisition and control software for SCADA, Factory Automation, HMI and Test and Measurement applications. DAQFactory provides all the tools needed to acquire data, log it, share it on a network, display it on the screen, graph it, analyse it, and automate your project. DAQFactory can communicate with just about any serial or Ethernet device using Modbus RTU, ASCII or Modbus/ TCP. It also supports a wide variety of DAQ devices including LabJack USB devices and many other DAQ cards.

More Information >>



User Manual >>

WTDUtility Software >>