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GPS Modbus Gateway

GPS Modbus Gateway

KTA-291 has been discontinued. No backorders allowed. A new version is available with part number KTA-391.

The KTA-291 is a Modbus GPS receiver. Extremely accurate time, position, and velocity data is made available for any Modbus Master (PLC, RTU, SCADA system, etc) to interrogate.

Magnetic mount active antenna included

Data Available:

  • UTC Date
  • Time accurate to 60 nanoseconds
  • Latitude and Longitude accurate to 2.5 metres
  • Altitude
  • Velocity
  • Course over ground (direction)
  • Number of satellites in use
  • Accuracy of returned data

Typical Applications:

  • Provide accurate timestamps to a SCADA system for logging
  • Synchronise logging operations across timezones
  • Location mapping and geotagging
  • Altitude readouts for weather observations
  • Precise speed readouts for vehicular sports/activities
  • Direction data for orienteering or navigation

The gateway acts as a Modbus slave over RS-485. All data is available as Modbus holding registers. Two open collector outputs are provided; one gives a pulsed output to synchronise the clock with external equipment, the other indicates a GPS position fix. A status LED is also provided to show GPS lock. Modbus comms settings can be altered via RS-485. A PC application is provided as a free download for this purpose. Shorting the reset terminal to ground returns the comms to default.

Note: the lower label on the sticker depicts the "closer" terminal. For example, V+ is the terminal closer to the sticker, GND is the neighboring terminal further behind.



SKU:  KTA-291

Qty. Price
(AUD ex. GST)
1 to 4 $295.00
5 to 9 $265.50 (10% off)
10+ $250.75 (15% off)

Contact us for details of when this product will be available.