1747-L542 | Allen-Bradley SLC 5/04 Processor 32K DH+ & RS-232

Allen-Bradley · PLCs & Industrial Controllers

Description The Allen-Bradley 1747-L542 is an SLC 5/04 processor module featuring 32 KB of user memory, built-in Data Highway Plus (DH+) and RS-232 communication ports, and support for up to 4096 inputs and 4096 outputs. Ideal for mid-size industrial automation systems, it provides reliable control, robust networking, and flexible expansion options within the SLC 500 modular platform.     Technical Specifications  Condition New/Never Used Surplus Brand Allen-Bradley Series SLC 500 Part Number 1747-L542 Manufacturer Rockwell Automation Module Type SLC 5/04 Processor User Memory 32 KB (Battery-backed RAM) Program/Data Memory 28K words program / 4K words data Discrete Inputs 4096 Discrete Outputs 4096 Analog I/O Max 480 Chassis Supported 3 local chassis Slots Supported Up to 30 Program Scan Time 0.9 ms/K I/O Scan Time 0.225 ms Communication Ports DH+, RS-232 Backup Memory 1747-M13 Battery Backup 1747-BA Backplane Current (5V) 1 A Backplane Current (24V) 175 mA Operating Temperature 0 to 60 °C Storage Temperature -40 to 85 °C Relative Humidity 5–95% non-condensing Shock Rating 30 G Vibration 2.5 G @ 57–2000 Hz Displacement 0.015 in. peak-to-peak @ 5–57 Hz       Information About 1747-L542 The Allen-Bradley 1747-L542 is a high-performance SLC 5/04 processor designed for mid-range applications within the SLC 500 family. It offers 32 KB of battery-backed RAM, divided into 28K words for program storage and 4K words of data memory, enabling users to design and execute complex control strategies. Equipped with Data Highway Plus (DH+) and RS-232 communication ports, the 1747-L542 supports smooth integration with HMIs, SCADA systems, programming terminals, and peer-to-peer communication with other Rockwell controllers such as PLC-5, CompactLogix, and ControlLogix via messaging. DH+ provides reliable plant-floor networking, while RS-232 is ideal for local devices and configuration tools. Key Features: 32 KB battery-backed RAM DH+ and RS-232 communication ports Supports 4096 input and 4096 output points Up to 480 local analog I/O points Supports three SLC chassis, up to 30 slots 0.9 ms/K typical program scan time LED status indicators for diagnostics Compatible with 1746 I/O and SLC 500 modular hardware Battery backup with 1747-BA Flash memory support (1747-M13) A mid-range SLC 5/04 processor offering robust communication, generous memory, and flexible I/O capacity for industrial automation and control applications.

Brand: Allen-Bradley · Category: PLCs & Industrial Controllers

Key features

• 32 KB battery-backed RAM
• DH+ and RS-232 communication ports
• Supports 4096 input and 4096 output points
• Up to 480 local analog I/O points
• Supports three SLC chassis, up to 30 slots
• 0.9 ms/K typical program scan time
• LED status indicators for diagnostics
• Compatible with 1746 I/O and SLC 500 modular hardware
• Battery backup with 1747-BA
• Flash memory support (1747-M13)

Specifications

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