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The Allen-Bradley 1756-L73 is a high-performance ControlLogix 5573 controller designed for demanding industrial automation applications. This controller provides 8 MB of user memory and 0.98 MB of I/O memory, supporting complex control logic and large-scale I/O configurations. It features a built-in USB port for convenient programming and diagnostics, as well as a 4-character alphanumeric display for real-time status and fault reporting.
| Model | 1756-L73 |
| User Memory | 8 MB |
| I/O Memory | 0.98 MB |
| Current Draw @ 5.1 VDC | 800 mA |
| Current Draw @ 1.2 VDC | 5 mA |
| Power Dissipation | 2.5 Watts |
| Isolation Voltage | 30 V Continuous |
| Max I/O | 128,000 |
| Max Analog I/O | 4,000 |
What is the primary function of the 1756-L73 controller?
The 1756-L73 is a central processing unit for the ControlLogix platform, responsible for executing user-defined control programs, managing I/O data, and coordinating communication across industrial networks.
Does this controller support remote communication?
Yes, the 1756-L73 supports various communication modules within the ControlLogix chassis to facilitate Ethernet/IP, ControlNet, and DeviceNet connectivity.