MELSEC-F Series Ethernet Adapters and Interface Blocks Discontinuation Notice

This technical bulletin announces the discontinuation of specific MELSEC-F series Ethernet communication adapters and interface blocks (FX3U-ENET-ADP, FX3U-ENET, FX3U-ENET-L, FX3U-ENET-P502) due to cybersecurity vulnerabilities in the FX3 series. It provides a discontinuation schedule (make-to-order from April 2024, production ends March 2025), repair support until 2032, and recommends migrating to the MELSEC iQ-F series with alternative models and specification comparisons.