Modbus I/O Module 4DI + 8DO + 3AI (8-28VDC)

Available for backorder
  • Weight
    0.35 kg
  • SKU
    KTA-224

PC or PLC based 6.5-36 VDC I/O Module 4DI+8DO+3AI via Modbus protocol.

KTA-224 can now be powered 6.5-36 VDC, therefore KTB-224 has been discontinued.

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KTA-224 can now be powered 6.5-36VDC, therefore KTB-224 has been discontinued.

The KTA-224 is a Modbus Slave I/O module for interfacing to any PLC or PC using the Modbus protocol. It behaves as a Modbus Slave and Relays, Inputs and Outputs are controlled by writing to and reading from the Coils and Holding Registers. It can be used for many applications such as controlling lights and sprinkler systems, reading sensors and monitoring switches and other digital signals, or even for industrial control.

The module can connect to a standard RS-485 2-wire half duplex network or to a computer via USB. When connected via USB, the module acts as a USB to RS-485 converter and multiple IO units (or other Modbus devices) can be connected to the RS-485 bus. USB drivers are available for Windows, Mac and Linux.

The user can save a set of output statuses to be loaded when the unit is powered up or reset. A watchdog timer can be configured to reset the unit after a user-definable number of seconds since the last communication from a Modbus master.

kta224.jpg

  • Power Supply: 6.5 to 36 VDC
  • Power Consumption: 500mA
  • 4 x Opto-Isolated Inputs: with counters, 0 to 30V
  • 3 x Analog Inputs: 10 bit resolution,  jumper-selectable for 0 to 5 V or 0 to 20 mA
  • 8 x Relay Outputs: SPDT, rated to 5A, 250VAC / 30VDC
  • Protocol: Modbus RTU via RS-485 or USB (virtual serial port)
  • 1200 to 38400 Baud Modbus Slave Device
  • Can be used as a USB to RS-485 converter
  • Watchdog Timer resets the unit when communication from the network master is lost
  • Operating temperature: -20°C to 70°C
  • Connections via Pluggable Screw Terminals
  • Dimension: 140L x 110W x 36H (mm)

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

Full Terms and Conditions

By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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