Product Summary
The Allen-Bradley 1747-L552 SLC 5/05 processor provides 32KB memory and Ethernet connectivity for medium to large industrial applications. It supports 4096 discrete input and output points plus 480 analog I/O channels for comprehensive control. This embedded Ethernet capability enables direct machine-to-enterprise integration without requiring any proprietary gateway conversion modules. The processor simplifies network architecture and reduces total system cost.
Vertical Integration Ready for Procurement Teams
The 1747-L552 processor includes an embedded Ethernet port with full BOOTP protocol support for straightforward network configuration. This feature allows direct connection to enterprise-level networks without requiring any extra hardware modules or converters. Procurement managers save significantly on costly proprietary protocol converters and gateway devices for vertical integration. The processor supports up to 48 simultaneous connections for both incoming and outgoing data traffic across the plant floor. This connection capacity handles complex networked applications with ease and efficiency for operators.
Memory and I/O Capacity for Large Systems
This processor offers 32KB of battery-backed RAM for program and data storage requirements in demanding applications. It allocates 28KB of memory for program logic and 4KB for user data storage. The 1747-L552 controls up to 4096 inputs and 4096 outputs across three chassis configurations for maximum flexibility. Engineers can manage multiple small processes or one large process with a single control processor module. This significant I/O capacity reduces hardware procurement needs and simplifies system architecture.
Communication Flexibility with Dual Ports
The 1747-L552 features both Ethernet and RS-232 communication ports for flexible connectivity options in any environment. The RS-232 port connects directly to panel-mounted HMI devices for local operator interface and diagnostics. The Ethernet port supports networked applications and simultaneous data exchange across the entire plant floor network. Outgoing connections establish one link per destination node for efficient data routing between devices. Multiple MSG instructions share the same connection for optimized data transfer without congestion issues.
Battery Back-up and Data Integrity Protection
The processor uses a user-replaceable lithium battery with a two-year average lifespan for reliable memory retention. An internal capacitor maintains processor operation for 30 minutes after battery disconnection events occur unexpectedly. Users must reconnect the battery within 30 minutes to prevent RAM data loss completely. This design protects critical control programs during maintenance cycles and routine battery changes.
Expert Performance Evaluation and Speed Metrics
The 1747-L552 executes program scans at 0.9 milliseconds per KB of logic for rapid processing throughput. Its I/O scan time measures just 0.225 milliseconds for fast data throughput and response times. The XIC bit execution completes in 0.37 microseconds for rapid logic evaluation and decision making. These performance metrics suit time-sensitive control applications in demanding manufacturing environments.
Environmental Tolerance and Industrial Durability
This processor operates in temperatures from 0 to 60 degrees Celsius for normal industrial conditions. It stores safely in storage conditions from -40 to 85 degrees Celsius for long-term reliability. The module withstands operating vibration of 0.015 inches peak-to-peak displacement without performance degradation. It also tolerates operating shock up to 30G for robust industrial use in harsh environments. Non-condensing humidity from 5 to 95 percent is acceptable for operation.
Power Loss Protection and Hold-Up Time
The processor provides a program scan hold-up time of 20 milliseconds to 3 seconds after power loss occurs. This window allows the system to save critical data before complete shutdown happens unexpectedly. The capacitor-backed battery system ensures data retention during brief power interruptions.
Mechanical Specifications and Mounting Details
The 1747-L552 measures 145 x 35 x 142 millimeters with an open-type enclosure for installation flexibility. It mounts directly into any SLC 500 chassis via the backplane connection for secure mounting. The single-slot design minimizes panel space usage and simplifies installation procedures. Status LEDs provide real-time monitoring of processor state and operation.
Logistics & Standard Packaging Details
Express delivery shipping is available via FedEx, UPS, and DHL for expedited order fulfillment.
