AB ALLEN-BRADLEY

1785-L20B/E Allen-Bradley PLC-5/20 Processor Module 16K SRAM DH+ Remote I/O Controller

$1,799.99 CAD

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Description:

Genuine Allen-Bradley PLC-5/20 processor module for industrial PLC and automation systems
Provides 16K words of battery-backed SRAM user memory for reliable program and data storage
Supports up to 512 total I/O points (any combination) or 512 inputs + 512 outputs in complementary mode
Features dual communication channels:
- One Data Highway Plus (DH+)
- One configurable DH+/Remote I/O (Scanner/Adapter)
Includes one configurable RS-232/RS-422A/RS-423A serial communication port for programming and communications
Supports up to 13 I/O chassis, including 12 remote chassis, making it ideal for distributed control systems
Compatible with 1771 I/O chassis and PLC-5 programming software
Designed for machine automation, process control, manufacturing, material handling, and legacy PLC-5 installations
Series E revision offering dependable performance for maintaining existing PLC-5 control systems.

Manufacturer Name: Allen-Bradley (Rockwell Automation)
Part Number (MPN): 1785-L20B/E
Product Series: PLC-5
Processor Model: PLC-5/20
Product Type: Processor Module
User Memory: 16K Words Battery-Backed SRAM
EEPROM Backup: Compatible with 1785-ME16, 1785-ME32, 1785-ME64, and 1785-M100
Maximum Total I/O:
- 512 (Any Mix)
- 512 Inputs + 512 Outputs (Complementary)
Maximum Analog I/O: 512
Maximum I/O Chassis: 13
Maximum Remote Chassis: 12
Communication Ports:
- 1 × DH+
- 1 × Configurable DH+/Remote I/O
- 1 × RS-232-C / RS-422A / RS-423A
Backplane Current Draw: 3.3 A @ 5V DC
Power Dissipation: 12 W
Battery: 1770-XYC Lithium Battery
Mounting: Single Slot in 1771 I/O Chassis
Operating Temperature: 0°C to +60°C (32°F to +140°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Applications:
- PLC Systems
- Industrial Automation
- Machine Control
- Process Control
- Material Handling
- Manufacturing
- Legacy PLC-5 Systems