Background: Introduced in 2000 the FX1N added additional functionality over the FX0N and provided additional means of expandability with the possibility of expanding to the right and the left. The FX1N could use the FX2N Series adapter boards and special function blocks, which in combination with the available expansion boards provided an unprecedented variety of expansion options.

Lifecycle: Introduced (2000) - Discontinued (December 2015)

Service Life: Repair Period Ends 2022

Migration Info: Currently the FX1N PLC is still available for existing users, but the FX3G PLC should be used in place of an FX1N PLC. The FX3G has the same I/O configurations as the FX1N and the terminal blocks can be removed from the FX1N and placed in the FX3G, so no additional wiring is required. FX1N PLCs can be programmed using the same software as the FX3G, but some review is necessary to ensure that all functions of the program are migrated successfully. Please contact your local Mitsubishi representative if additional assistance is required.

Suggested Replacements: The following tables list affected FX products and suggest replacements. Please confirm all specifications with the applicable manuals. 

  • Suggested part numbers are not always drop-in replacements
  • Replacing one main unit or expansion product may require an upgrade to the entire system
  • You may need to change programs and wiring 
Main Units
 Discontinued Product   Suggested Replacement 
 FX1N-24MR  FX3G-24MR/ES
 FX1N-24MT  FX3G-24MT/ES
 FX1N-40MR  FX3G-40MR/ES
 FX1N-40MT  FX3G-40MT/ES
 FX1N-60MR  FX3G-60MR/ES
 FX1N-60MT  FX3G-60MT/ES
 FX1N-24MR-D  FX3G-24MR/DS
 FX1N-24MT-D  FX3G-24MT/DS
 FX1N-40MR-D  FX3G-40MR/DS
 FX1N-40MT-D  FX3G-40MT/DS
 FX1N-60MR-D  FX3G-60MR/DS
 FX1N-60MT-D  FX3G-60MT/DS
Expansion Board, Memory Cassette
& Display Modules
 Discontinued Product   Suggested Replacement 
 FX1N-232-BD  FX3G-232-BD
 FX1N-422-BD  FX3G-422-BD
 FX1N-485-BD  FX3G-485-BD
 FX3S-5DM *1
 FX3G-5DM *2
 *1 - Connectable to the FX3S series
 *2 - Connectable to the FX3G series
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