EKI-1242BNMS - Modbus RTU/TCP to BACnet IP/MSTP Fieldbus Gateway with 4x 10/100 Ethernet and 2x RS-232/422/485 ports

5 Year Warranty

These products come with a standard five year manufacturer warranty.

Extended Wide Temperature

These products utilise high quality industrial grade components enabling them to work in extended wide temperature environments. They are capable of running below -20C and above +70C and offer further protection than standard wide temperature rated products.

Wide Temperature

These products utilise high quality industrial grade components enabling them to work in wide temperature environments. They are capable of running as low as -20C and as high as +70C.

DIN-rail mountable

These devices have been designed to be mounted directly on to an industry standard DIN-rail.


This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.


CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.

FCC Approved

The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.

EKI-1242BNMS BACnet IP Gateway
Free delivery to UK mainland addresses

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EKI-1242BNMS with wide operating temperature (-10°C to +60°C)


EKI-1242BNMS with extended operating temperature (-40°C to +75°C)

All prices exclude VAT at current rate.
Minimum order value - £30 (exc. VAT and delivery).
Free delivery of the EKI-1242BNMS to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)
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EKI-1242BNMS overview

  • Designed for protocol extensibility and adaption
  • Mounts via DIN-rail and wall-mount
  • Supports dual power input for power redundancy
  • Seamless integration between Modbus RTU/TCP and BACnet IP/MSTP communication
  • Modbus Master mode supports 64 connections
  • Optional extended operating temperature "I" model (-40°C to +75°C)
The EKI-1242BNMS industrial Fieldbus gateway establishes communication between Fieldbus and industrial Ethernet and supports different protocol devices integrating new and existing Modbus RTU/TCP devices with BACnet IP/MSTP networks making it ideal for Building Automation and Control (BAC) applications.

The EKI-1242BNMS is an uncomplicated and cost-effective way to efficiently transfer data between devices scross multiple networks and protocols.

For more information about the EKI-1242BNMS Modbus to BACnet gateway please contact our technical sales team on +44 (0)1782 337 800 or alternatively submit an enquiry.
Enquire about the EKI-1242BNMS
Need more info or project pricing for the EKI-1242BNMS?
T: +44 (0)1782 337 800 • E: sales@impulse-embedded.co.uk
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+44(0)1782 337 800