How Does Lingkong LK3U/ZK3U Use W5500 for PLC Ethernet?
Lingkong LK3U/ZK3U manuals expose W5500 ENET readiness, version registers, Modbus TCP, SNTP, and Ethernet fault codes.
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Components
Hardware components
WIZnet - W5500
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W5500 Ethernet/TCP controller identified in the source manual
Project description
Overview Lingkong LK3U and ZK3U are FX3U-compatible PLC families whose user manual exposes W5500 directly in the Ethernet register and fault-code interface. The evidence is not only a marketing phrase: M8404 reports W5500 reset readiness, D8413 is assigned to W5500 program version, and error codes 6392 and 6394 identify W5500-related Ethernet failures. Generated compact overview: the LK3U/ZK3U PLC families use a W5500-backed ENET path for Ethernet programming and Modbus TCP functions. Lingkong describes itself as an industrial automation company based in Huizhou, China, focused on…
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