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plcpeople / nodeS7

Node.JS library for communication to Siemens S7 PLCs
MIT License
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Question: MPI over Serial #141

Closed ptorrent closed 1 month ago

ptorrent commented 1 month ago

Hello there !

Just a question about this module. Does it support serial communication over RS485 ? Or Do I've to use a "convertor" for make it works ?

Thanks for your support !

plcpeople commented 1 month ago

It only works with a purpose-built MPI to S7-Ethernet converter like the Helmholz Netlink PRO series, IBHNet S7++, etc. It doesn't do direct serial with or without the "PC Adapter" and won't work with a standard RS485 to Ethernet device.