Allen Bradley 1785-L80C15 PLC-5/80C ControlNet Processor Module

Product Overview

The Allen Bradley 1785-L80C15 represents a high-capacity computational core within the legacy PLC-5 architecture. Specifically engineered for ControlNet Phase 1.5 environments, this PLC-5/80C processor manages large-scale industrial applications requiring deterministic data delivery and high-density I/O control. It coordinates complex logic execution and high-speed networking across distributed architectures. We supply this unit as 100% Brand New and Factory Original, providing an essential, high-integrity replacement for mission-critical systems officially discontinued by the manufacturer.

Technical Specifications

The 1785-L80C15 utilizes advanced memory management and dedicated communication channels to maintain system stability:

Engineering Advantages

• Deterministic ControlNet Integration: The onboard ControlNet interface provides high-speed, repeatable communication for time-critical control data. This allows the 1785-L80C15 to synchronize I/O updates and inter-processor interlocking without the collisions or latency spikes found in non-deterministic networks.

• Massive I/O Throughput: This processor supports up to 3072 I/O points, enabling it to manage entire production lines or complex chemical processes from a single 1771 chassis. It streamlines control architecture by centralizing logic execution for hundreds of digital and analog field devices.

• Dual Network Capability: Beyond ControlNet, the module includes Data Highway Plus (DH+) and RS-232-C ports. This triple-port configuration allows simultaneous high-speed control, peer-to-peer messaging with other PLC-5 controllers, and direct serial interfacing for programming or SCADA connectivity.

• Robust Memory Protection: The 1785-L80C15 utilizes internal hardware safeguards to prevent data corruption during power fluctuations. It ensures that critical machine states and user-defined variables remain intact, preventing costly manual recalibrations after system restarts.

• Standardized 1771 Chassis Compatibility: The unit slides directly into any standard 1771 universal I/O rack. This mechanical compatibility permits rapid hot-swapping or upgrades of existing PLC-5 systems, minimizing machine downtime during maintenance or performance optimization cycles.

FAQs

• Is this 1785-L80C15 unit 100% Brand New?

  Yes. We guarantee this processor is 100% Brand New and arrives in its original factory packaging. We do not supply refurbished or "tested" used units, as industrial CPUs require uncompromised internal components and capacitors to guarantee long-term operational reliability.

• Does this module support ControlNet Phase 1.2?

  The 1785-L80C15 specifically targets ControlNet Phase 1.5. While it maintains backward compatibility with certain legacy segments, you must verify your network hardware revisions and software versions (RSLogix 5) to ensure full synchronization across the phase 1.5 protocol.

• What software is required to program this CPU?

  You must use RSLogix 5 software to configure and program the 1785-L80C15. Ensure your software license includes the hardware profiles for PLC-5/80C series processors to access all Phase 1.5 networking features.

• How do I handle the battery for this processor?

  The module requires a 1770-XYC lithium battery to maintain the user memory and real-time clock when the chassis is powered down. While the unit is brand new, we recommend installing a fresh battery during commissioning to ensure maximum data retention life.