How can we help you today?

Modicon M221 - TM3 bus doesn’t work with TM3DM24R or TM3XTYS4 SV 2.0

  • Problem description:
If TM3DM24R or TM3XTYS4 module is placed before TM3 analog input modules (TM3A* or TM3T*) with TM221 controller.
  • Results:
- The TM3 expansion bus communication is not operationnal, the IO ERR Led is fixed red.
- The system word %SW118 is different than 16#FFFF (bit 13 or bit 14 is set to 0).

=> This issue is fixed by the M221 firmware version v1.10.1.3 attached to this FAQ.
  • How to update M221 with .mfw file:
See attached document.

Schneider Electric USA

Attachment(s)
M221 - FW V1.10.1.3.zip [429.2 KB]
How to update M221 with .mfw file.docx.zip [126.12 KB]
Explore more
Range:
Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more
Explore more
Range:

Need help?

Need help?

Product Selector

Product Selector

Quickly and easily find the right products and accessories for your applications.

Get a Quote

Get a Quote

Start your sales inquiry online and an expert will connect with you.

Where to buy?

Where to buy?

Easily find the nearest Schneider Electric distributor in your location.

Help Center

Help Center

Find support resources for all your needs, in one place.

  • Help and Contact Center
  • Contact Sales
  • Find our Offices
  • Where to Buy
  • Tech Support: 877-342-5173
  • Careers
  • Company Profile
  • Investors
  • Newsroom
  • Report a Misconduct
  • Product Documentation
  • Software and Firmware
  • Product Selector
  • Product Replacement
  • DigestPLUS Online Catalog
  • Industries
  • Partners
  • Schneider Electric Community
  • Events
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings