1785-L40C15 Allen Bradley PLC-5/40C ControlNet Processor Module In Stock
Allen Bradley 1785-L40C15 PLC-5/40C CPU 48K SRAM 2048 I/O ControlNet Dual DH+ RIO 5VDC 3A discontinued refurbished 12 month warranty
Product Overview
- 1785-L40C15 is a PLC-5/40C processor module with ControlNet interface in Allen Bradley PLC-5 series
- Installed in 1771 I/O chassis left-most slot as main controller for distributed automation systems
- Built with 48K words battery-backed SRAM supporting up to 2048 mixed discrete/analog I/O points
- Equipped with dual ControlNet ports plus 2 DH+/RIO ports for multi-network integration
Discontinued original for legacy system maintenance replacement and spare parts backup
Core Features
- 48K words battery-backed SRAM for program/data storage EEPROM backup via 1785-ME series cards
- Supports 2048 I/O points any mix of discrete/analog; max 125 I/O chassis
- Dual ControlNet ports 1.25-phase operation; 2 DH+/RIO ports configurable as scanner/adapter
- DF1 serial communication support; hot backup compatible via 1785-CBHM
Compatible with 1771 1794 1746 1791 I/O modules for flexible system expansion

Technical Parameters
- Brand: Allen Bradley Rockwell Automation
- Part Number: 1785-L40C15
- Series: PLC-5/40C ControlNet
- Type: Processor CPU Module
- User Memory: 48K Words SRAM
- Max I/O Capacity: 2048 Points
- Communication Ports: 2 ControlNet 2 DH+/RIO
- Backplane Current: 3.0A @5VDC
- Power Consumption: 15W
- Operating Temperature: 0°C ~ 60°C
- Battery: 1770-XYC
- Weight: 1.43kg
- Condition: Original Discontinued Refurbished
Warranty: 12 Months
Applications
- PLC-5 ControlNet distributed control system main unit
- Chemical power water treatment and large process manufacturing
- Legacy PLC-5 networked system upgrading and renovation
Hot backup system configuration and critical equipment control
Our Advantages
- Fully tested and calibrated before delivery
- Sufficient stock fast global shipping
- Professional technical support for installation and programming
- Competitive bulk wholesale price available
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