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1747-L551 Allen-Bradley | Controller Module

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About the Product

Allen-Bradley 1747-L551 SLC 5/05 Controller

Core Specifications

Processor Type SLC 5/05 with Ethernet
Memory Capacity 16KB (expandable to 64KB with 1747-M13)
I/O Capacity 4096 Discrete Inputs / 4096 Discrete Outputs
Analog Capacity 480 Local Analog I/O points
Scan Performance 0.225ms I/O scan, 0.9ms/K program scan

Communication Interfaces

  • Ethernet Port: 10/100 Base-T with SNMP/BOOTP support
  • RS-232 Port: DF1 full/half-duplex and radio modem
  • Remote I/O (RIO) capability
  • DH485 and DH+ protocol support
  • DeviceNet pass-thru functionality

Advanced Features

  • Built-in real-time clock/calendar
  • Online programming with runtime editing
  • Advanced math instructions
  • Indirect addressing support
  • Extended messaging capabilities

System Configuration

  • Installs in slot 0 of 1746 chassis
  • Supports 3 local I/O chassis (30 slots max)
  • Distributed I/O architecture
  • Battery backup (1747-BA)
  • Flash memory module support (1747-M13)

Status Indicators

  • Run Mode
  • CPU Fault
  • Battery Low
  • Forced I/O
  • Ethernet Activity
  • RS-232 Activity

Environmental Ratings

  • Operating Temperature: 0-60°C (32-140°F)
  • Storage Temperature: -40-85°C (-40-185°F)
  • Humidity: 5-95% non-condensing
  • Shock Resistance: 30G operational / 50G non-operational
  • Vibration: 2.5G @5-2000Hz

Safety & Isolation

  • 500V DC communication circuit isolation
  • 1500V AC backplane-to-I/O isolation
  • UL 508 and CSA C22.2 No. 142 compliant

Typical Applications

  • Ethernet-connected control systems
  • Distributed I/O architectures
  • SCADA and HMI integration
  • Process control applications
  • Legacy system modernization
  • Quick Quotes: Receive pricing and availability fast from our dedicated customer service team.
  • Delivery: Expedited, freight, and international shipping available worldwide.
  • Warranty: NexAuto offers a 12-month warranty on all parts purchased from us, in addition to any manufacturer coverage.
  • Returns: 30-day return policy for defective or mismatched parts, ensuring peace of mind.
  • Payment: Flexible options including major credit cards, PayPal, and bank transfers.
  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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