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Answered questions
Connectivity We want to read data from a Siemens S7-1200 into an industrial PC for logging and display. Which route should we take? Three common routes; pick by the software you already run:
1. OPC UA. Recent S7-1200 firmware includes an OPC UA server (it must be enabled, and some CPU versi… Connectivity We need four RS-485 ports for PLCs and drives but the machine only has two. What is the reliable way to add them? Three options, ordered by reliability on a plant floor:
1. An internal expansion card (PCIe, mPCIe, or the machine line's own I/O module). Most stable, drivers…