Description

Allen-Bradley 1747-L531 is an SLC 5/03 Processor from the SLC 500 family, designed for small to large-scale distributed control systems. With 8KB of memory, it supports 4096 I/O points and communication via DH485 and RS-232.

General Info

• Part Number: 1747-L531
• Series: SLC 500
• Module: SLC 5/03 Processor
• Memory: 8 KB (Battery Backed-RAM)
• Inputs: 4096
• Outputs: 4096
• Analog I/O: 180
• Chassis: 3 chassis, 30 slots
• Backplane Current: 500 mA (5V DC)
• Battery Backup: Yes (requires 1747-BA)
• Dimensions: 145 x 35 x 142 mm
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Vibration: 0.015-inch peak-to-peak at 5-57 Hz
• Shock: 30 G
• Humidity: 5% to 95% (non-condensing)

Specifications

• Program Scan Time: 1 ms/K
• I/O Scan Time: 0.225 ms
• Communication: DH485, RS-232
• User Memory: 8,000 words
• Power: 1.75 W (minimum)
• Hold-up Time: Continues operation temporarily during power fluctuation
• Battery: User-replaceable, lasts up to 2 years
• Backup Memory: Flash EPROM (1747-M13), up to 64 KB

Features

• Configurable Memory: Choose between 8 KB, 16 KB, or 32 KB
• Communication Protocols: DH-485, ControlNet, DeviceNet, Modbus RTU, DF1, and ASCII
• Hold-up Time: Processor runs temporarily after power loss
• LED Indicators: Show battery and processor status
• Memory Expansion: Supports Flash EPROM (up to 64 KB)
• Key Switch: Select PROGRAM, RUN, or REMOTE mode

Compatibility

• I/O Modules: Up to 60 modules, including analog, digital, and intelligent I/O
• Memory: Compatible with Flash EPROM for program retention
• Slots: 3 chassis, 30 module slots

Environmental

• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Humidity: 5% to 95% (non-condensing)