In process automation, transmitters and field devices often use fieldbus interfaces such as Foundation Fieldbus and PROFIBUS PA in accordance with IEC61158-2 for communication. These interfaces are often based on established chipsets such as SPC4-2 and SIM1-2 for implementing bus-powered or externally supplied devices in hazardous areas. Due to the current discontinuation of these chipsets, many manufacturers are facing challenges.

MAU module SIM1-2 discontinued

The SIM1-2 MAU module has been discontinued since April 2024. This development is forcing many field device manufacturers who still use these chipsets to urgently redesign their products.

SIM1-2 alternative for field device manufacturers

MESCO has developed a proven Fieldbus MAU Design Package that replaces the SIM1-2 module with discrete electronic modules and has already been successfully integrated several times. This package uses the same logical interfaces as the SIM1-2 module, but is not a direct chip replacement, but a circuit design that replicates the function of the SIM1-2 1:1. The design passes the conformance tests of the fieldbus organizations and meets all Ex and EMC requirements.

Your advantages:

  • Proven, robust replacement circuit for SIM1 chip solutions: Proven alternative to the SIM1-2 device.
  • Simple and fast redesign: MESCO offers hardware development services for an uncomplicated redesign of SIM1-based field devices.
  • Securing the technological solution and future-proofing: Guaranteed delivery capability and independence from the chip supplier.

MESCO Design Service with implementation of redesign work:

  • Hardware development service for field devices
  • Schematic and layout adaptations including Ex measures
  • Creation and testing of functional samples to verify the new design
  • Performance of EMC and fieldbus pre-certification tests in the MESCO laboratory
  • Design support: Support during the entire design process
  • Documentation and Ex support: Comprehensive documentation and support with Ex requirements

 

For more information and support with your redesign project, please contact our MESCO team. Together we will secure the future of your field devices!

Do you have any questions?

We are looking forward to your request.
MESCO Engineering, Inc.
2125 Center Avenue Suite 507
07024 Fort Lee, New Jersey
USA
MESCO Engineering GmbH
Berner Weg 7
79539 Lörrach
Germany
MESCO Engineering GmbH
Wentzingerstraße 21
79106 Freiburg
Germany
MESCO Engineering AG
Klosterzelgstrasse 1a
5210 Windisch
Switzerland

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