Programmable Logic Controllers (PLC) » Allen-Bradley » PLC-4

Allen-Bradley PLC-4 Specifications

Specifications

TypeRack-mounted modular
Programming languageLadder logic
I/o capacityup to 256
Power supply120-240 V
The above specifications are based on the 1975 model year.

Allen-Bradley PLC-4 description

The Allen-Bradley PLC-4 is a vintage rack-based programmable logic controller known for robust industrial control in legacy automation systems. Designed for modular I/O and reliable ladder-logic control, it remains sought after for refurbishing, retrofitting and supporting older production lines where original compatibility and proven durability matter.

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