Allen-Bradley SLC 500 is a family of modular programmable logic controllers (PLCs) designed for small to medium-sized industrial automation applications
Processor: Type, memory, I/O capacity.
I/O Modules: Input type (DC/AC), output type (relay/transistor), point count.
Communication: Protocol (DH-485, DF1), baud rate, address.
Power Supply: Voltage (120VAC/24VDC), current rating.
Timers/Counters: Number, type (TON/TOF/RTO), preset/accumulator values.
Data Files: Type (N/B/F), size, address range.
Diagnostics: Fault codes, status indicators.