Hi Jooyoung, Glad to have you here β¦ always happy about people actually willing to contribute π
If you run into any general questions, feel free to ask here and weβll do your best to answer them as quickly as possible π Chris Von: μ μ£Όμ <[email protected]> Datum: Freitag, 5. Juni 2026 um 11:20 An: [email protected] <[email protected]> Betreff: Introduction + SLMP, MELSEC-Communication 3E, read-only driver Hi all, I'm Jooyoung Jung (GitHub: LivingLikeKrillin). My background is in industrial connectivity gateways β OPC UA and PLC protocols (S7, Modbus, and the Mitsubishi MELSEC / MC family, which I've implemented and run in production). Chris suggested I bring things over to the list, so β introducing myself. I'm working on a read-only SLMP (MELSEC-Communication, 3E binary frame) driver; PLC4X doesn't have a Mitsubishi driver yet. It's proposed in #2585 ( https://github.com/apache/plc4x/issues/2585). I've started mspec-first: an slmp.mspec for the 3E Batch Read frame from the public SH-080008 manual, plus a ParserSerializer suite. I'll validate it against a real 3E capture before calling the wire layer done. Chris flagged that the SPI rewrite changes how the root type declares encoding defaults, so I'll keep the mspec on current develop for now and build the driver logic on the new SPI once it merges. Happy to early-adopt the new SPI for SLMP and report back anything I hit β point me at whatever's useful. Separately, I've got a smaller item ready in plc4x-extras β upgrading the opcua-server tool from Milo 0.6.16 to 1.1.3 (#700, which Chris welcomed) β and will open that PR shortly. Thanks, Jooyoung
