Product Overview
The 1756-L71 is a genuine Allen-Bradley ControlLogix 5570 processor delivering 2 MB of user memory and 0.98 MB of I/O memory for medium-complexity machines and process skids. It installs directly into any 1756 chassis, features an onboard USB programming port, and supports Studio 5000 Logix Designer projects up to 32 tasks. Ideal for OEMs, retrofits and plant expansions that need reliable, real-time control with minimal engineering overhead.
Key Specifications
• Part number: 1756-L71
• Series: ControlLogix 5570
• User memory: 2 MB (approx. 1 million instructions)
• I/O memory: 0.98 MB (64 K I/O points)
• Tasks: 32 continuous / periodic / event tasks
• Scan time: 0.2 ms per 1 K instructions typical
• Ports: 1× USB 2.0 (12 Mbps), 1× RS-232 (DF1)
• Chassis slots: 1 slot (any slot except power-supply bay)
• Power consumption: 5.5 W @ 5 V DC
• Battery: 1756-BA1 lithium (included)
• Certifications: UL 508, cULus, CE, ATEX Zone 2, RCM, RoHS
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2MB Allen Bradley 1756-L71 0.98MB I/O Memory USB Port Chassis Mount Lithium Battery Images
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