You are viewing a used but fully tested Allen-Bradley PLC processor module. As pictured • Manufacturer: Allen-Bradley (Rockwell Automation) • Model Number: 1747-L551 • Operating System: 1747-OS501 • Series: C • Firmware Revision: FRN 4 • Condition: Used, tested, and in excellent working condition • Type: SLC 5/05 CPU Processor Module • Features: • Ethernet and RS-232 communication ports • 16K word user memory • Compatible with SLC 500 modular controllers • Ideal for industrial automation and control systems
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