Allen-Bradley
Allen-Bradley Module New Original factory 1771-A4B
$88.00
$288.00
Allen-Bradley PLC-5
Allen-Bradley PLC-5 is a legacy programmable controller platform built around 1785 processors and modular 1771 I/O hardware. A typical system combines a processor, chassis, power supply and discrete, analog or specialty modules, with remote adapters linking additional I/O chassis. Processor selection determines memory capacity, network connections and the supported control architecture. Communication options across the family include DH+, serial links, Ethernet and ControlNet, with availability dependent on the processor or interface module. RSLogix 5 provides ladder programming, data file management and online diagnostics. The platform performs machine sequencing, interlocks, counting, timing and analog process control while exchanging operating data with supervisory systems. Replacement selection requires matching processor capabilities, I/O addressing, chassis configuration and existing communication networks.
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