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Machine Design

Ethernet Connectivity

The SJ-EN Ethernet option board gives the SJ300 and L300P families of ac inverters a highperformance, easytouse Ethernet interface.

The board installs in an internal option-board expansion slot and connects to the network via a standard RJ45 connector. The SJ-EN implements the Modbus/TCP protocol for versatility and incorporates six LEDs to monitor board status and activity and an eight-position DIP switch for setting the node address.

Hitachi America Ltd.,
50 Prospect Ave.,
Tarrytown, NY 10591,
(914) 332-5800,

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