PLC black outline icon
Outline icon of a PLC control unit with display and indicator lamp inside a circle
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About the PLC black outline icon
Inside a circular frame sits a boxy control unit: a rounded display panel lettered PLC, two small rectangular terminal blocks flanking a round indicator lamp beneath it, and a short pedestal stand with a slot. It stands for programmable logic controllers, factory automation and machine control. Use it in SCADA and HMI interfaces, industrial automation product catalogs, engineering diagrams, PLC training material and control panel documentation.
The unit is centered and slightly wider than tall, with the lettering carrying most of the visual weight so the device is identifiable even without context. The enclosing circle matches other badge-framed technology glyphs in the library and pairs with sensor, relay and servo motor icons. Use it at 32 px or larger, otherwise the PLC lettering closes up.
This is the black outline version of the plc icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
