Allen-Bradley 1747-L542: SLC 5/04 Programmable Controller
The 1747-L542 from Allen-Bradley delivers advanced control capabilities for industrial automation systems. Rockwell Automation engineered this robust processor with enhanced communication features. This mid-range controller excels in applications requiring reliable Data Highway Plus connectivity and substantial memory capacity.
Core Technical Specifications
- Brand & Model: Allen-Bradley 1747-L542
- Processor Type: SLC 5/04 Programmable Logic Controller
- User Memory: 32K words (28K program + 4K data)
- I/O Capacity: 4096 discrete inputs & 4096 discrete outputs
- Analog I/O: 480 points maximum capacity
- Scan Performance: 0.225ms I/O scan, 0.9ms/K program scan
- Instruction Speed: 0.37μs bit instruction execution
- Backplane Current: 1A @ 5V DC, 175mA @ 24V DC
- Communication Ports: RS-232 & Data Highway Plus (DH+)
Performance & Environmental Specifications
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C (-40°F to 185°F)
- Shock Resistance: 30G operational shock rating
- Vibration Immunity: 2.5G @ 57-2000Hz frequency range
- Humidity Range: 5% to 95% non-condensing
- Memory Backup: Battery-backed RAM with 1747-BA lithium battery
- Flash Backup: Additional Flash EPROM memory protection
- Power Hold-up: 20ms to 3 seconds after power loss
Installation & Compatibility
- Installs in slot 0 of 1746-A2, A7, A10, and A13 chassis
- Supports up to 3 local I/O chassis with 30 total slots
- Features mode selection key-switch for operation control
- Provides comprehensive status LEDs for system monitoring
- Enables messaging with PLC-5, CompactLogix, and ControlLogix
- For Ethernet connectivity, consider the 1747-L552
- For higher capacity needs, explore the 1747-L553
Shipping & Package Contents
- Genuine Allen-Bradley 1747-L542 controller module
- Comprehensive installation documentation
- Secure protective packaging materials
- Shipped via FedEx, UPS, or DHL express services
- 12-month performance warranty coverage
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