IF300 Current to Fieldbus Converter

The IF300 Current to Fieldbus Converter is a very useful device in plant revamps.

Consider a situation where you are upgrading your instrumentation from a good old line of products to FOUNDATION Fieldbus or PROFIBUS PA.

Imagine the fact that some instrumentation could be very expensive and they may be still working well. There will be no sense to replace them just because they cannot be integrated in your new network.

Here comes the IF300 Current to Fieldbus Converter.

Each IF300 will be able to receive up to 3 current signals and convert them to be transported and integrated to your new communication network.

IF300 Current to Fieldbus Converter Types:

Current to FOUNDATION Fieldbus Converter - IF302

Up to 3 current signals will be integrated to participate in a FOUNDATION Fieldbus H1 network.

Current to PROFIBUS Converter - IF303

Up to 3 current signals will be integrated to participate in a PROFIBUS PA network.


The IF300 comes in 2 models. One for FOUNDATION Fieldbus and other to PROFIBUS PA integration.The input current can be the conventional 4-20 mA or 0-20 mA.

With the IF300 Current to Fieldbus Converter you can send your current signal to a digital bus in minutes. Consequently, this will give a considerably reduction on installation costs, operation and maintenance.

Now you can make a good legacy devices to participate in the digital world!

Detailed Features

Available on FOUNDATION™ fieldbus e PROFIBUS-PA technologies.

Power supply through H1 bus: 12 mA @ 9 a 32 Vcc;
Digital input signal compliant with IEC 61158-2;
Analog input signal accepts any values between 0-20 mA ou 4-20 mA, while the conventional equipment are powered by external supply;
Exactness: ±0.03%;
Housing in aluminum or stainless steel 316;
Configuration via engineering stations through tools based on EDDL and FDT/
DTM or local adjustment;
Integration with Profibus automation systems through GSD file;
Explosion-proof and intrinsically safe (ATEX (NEMKO and DEKRA EXAM), FM,

Function blocks:
- Up to 20 Function Blocks dynamically instantiable for the IF302 with capability of LAS backup master;
- Physical Block, 3 transducer blocks, 3 Analog Input blocks, 3 Totalizers and 1 display block for IF303 adjustment;
- Fail-safe functions;
- Compatible with Profibus Profile 3.

Literature and Links


IF and FI300 Catalog (Includes Dimensions)


IF302 at smar.com

IF303 at smar.com


  1. MIGUEL MESINA on August 19, 2020 at 5:24 pm

    Hello Sirs

    We need quotation about SMAR converter, modelo IF302-12-0

    Indicating your best price and delivery time..

    • smarusa on October 7, 2020 at 8:23 pm

      Please send a Requisition for Quote to smar@smar-usa.com.
      A SMAR sales person will clarify your needs.
      Thanks for your interest.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.