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Modicon PAC Forum
A forum for topics related to the scope of Modicon PAC offers and ecosystem along the whole lifecycle: Modicon M580 and 340, EcoStruxure Control Expert, EcoStruxure Process Expert (Unity Pro) and more.
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Posted: 2025-06-17 08:28 AM
Can M580 Firmware be downgraded from 4.xx to 3.20?
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Posted: 2025-07-15 12:45 AM
Yes if the module was originally at V3.2 then it is possible to downgrade the CPU firmware from V4.x to V3.20. It is a two step process where an intermediate firmware is installed using EADM. Then V3.20 is installed.
Refer to the following link to understand how it is done. Modicon M580 Controller Firmware, Installation Guide | Schneider Electric
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Posted: 2025-07-15 12:45 AM
Yes if the module was originally at V3.2 then it is possible to downgrade the CPU firmware from V4.x to V3.20. It is a two step process where an intermediate firmware is installed using EADM. Then V3.20 is installed.
Refer to the following link to understand how it is done. Modicon M580 Controller Firmware, Installation Guide | Schneider Electric
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