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Home > Consumer Electronics > Display & Accessories > LCD Module > ALLEN BRADLEY PLC5 PLC-5 PROCESSOR 1785-L40C

ALLEN BRADLEY PLC5 PLC-5 PROCESSOR 1785-L40C

Product Spotlights

Reliable Allen-Bradley PLC-5 1785-L40C processor with 16 KWords memory, DH+/DH-485 communication, and broad 1771 I/O support. Backed by ISO9001 certified supplier with 10+ years export experience, global warehousing, and 12-month warranty. Pre-tested, ready to deploy for legacy automation upgrades.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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brand:

Allen-Bradley

model:

1785-L40C

product_type:

PLC-5 Processor Module

Contact Supplier Request Quote Chat Now

Rossonix Co.,limited

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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brand Allen-Bradley

model 1785-L40C

product_type PLC-5 Processor Module

memory_capacity 16 KWords (battery-backed RAM)

power_requirement 5V DC, 1.5A typical

communication_ports DH+, DH-485, RS-232/422/423

operating_temperature 0°C to 60°C (32°F to 140°F)

chassis_compatibility 1771 I/O chassis

certification UL, CSA, CE (upon request)

Rossonix Co., Limited is proud to offer the ALLEN BRADLEY PLC5 PLC-5 PROCESSOR 1785-L40C, a robust and field-tested programmable logic controller designed for demanding industrial automation applications. This processor module is part of the legendary PLC-5 family, known for its reliability, modularity, and powerful instruction set. Whether you are upgrading an existing system or building a new control solution, this unit delivers consistent performance with a compact footprint, making it ideal for discrete, process, and batch control environments. Backed by our extensive experience since 2011 and annual export volume of US$5-10 Million, we ensure each unit is thoroughly tested and ready for integration.

Key Features & Specifications

High-Performance Control: 16-bit processor with 16 KWords of battery-backed RAM for logic and data storage.
Flexible Communication: Built-in DH+ (Data Highway Plus), DH-485, and serial ports (RS-232/422/423) for peer-to-peer and master-slave networking.
Extensive I/O Support: Accommodates up to 4096 digital I/O points or 512 analog channels via 1771 I/O chassis.
User-Friendly Programming: Compatible with RSLogix 5 software (version 6.0 or later) for ladder logic, SFC, and structured text.
Industrial Durability: Operating range 0°C to 60°C, NEMA rated enclosure optional, vibration/surge protection per IEC 61131-2.
Diagnostic LED Indicators: Power, Run, Fault, Battery, and Communication status for quick troubleshooting.
Battery Backup: Retains program and data for up to 6 months (typical) without power.

Parameter	Value
Processor Type	16-bit integrated CPU
Memory (User Logic)	16 KWords (battery-backed)
I/O Capacity	4096 digital / 512 analog
Communication Ports	1x DH+, 1x DH-485, 2x serial
Power Consumption	5V DC, 1.5A (max 2.0A)
Program Execution Speed	0.5 ms per KWord (typical)
Battery Life	6 months (10-year shelf life)
Dimensions (H x W x D)	23.0 x 12.7 x 26.0 cm (9.1 x 5.0 x 10.2 in)

Benefits for Your Operation

Reduced Downtime: Quick replacement with pre-tested modules from our stock; over 85% of orders ship within 24 hours.
Scalability: Easily expand with additional 1771 I/O modules, remote racks, and third-party interfaces.
Legacy Integration: Seamlessly connects to existing PLC-5 networks, preserving your previous investment.
Global Support: Our overseas offices in Europe and Hong Kong ensure fast technical assistance across time zones.
Cost-Effective: Competitive pricing without compromising on quality – each unit undergoes functional testing under load.

Trust & Reliability – Why Choose Rossonix?

Since 2011, Rossonix Co., Limited has served diverse industries including automotive, food & beverage, and packaging across North America, South America, Europe, and the Middle East. Our ISO9001 and ISO9000 certified quality management system ensures every product we supply meets strict international standards. With an annual export value of US$5-10 Million and a dedicated team of 11-50 professionals, we have built long-term partnerships with clients in over 15 major markets. We ship from warehouses in Shenzhen, Hong Kong, and Europe, offering flexible logistics options. Each 1785-L40C processor is sourced from reliable channels and 100% tested before dispatch. Contact our sales team today for a quote, technical datasheet, or customization request – we are committed to delivering value and expertise.

Frequently Asked Questions (FAQ)

Q: Is this processor compatible with RSLogix 5 version 6.0?
A: Yes, the 1785-L40C works with RSLogix 5 v6.0 and later. We can provide a firmware compatibility guide upon request.
Q: Can I use this in a redundant control system?
A: The standard 1785-L40C does not support redundancy natively. For redundant applications, consider the 1785-L40B or add an external arbitration module. Contact us for recommendations.
Q: What is the warranty period?
A: We offer a 12-month warranty for all our Allen-Bradley PLC-5 processors, covering defects in materials and workmanship.
Q: Do you provide programming cables or batteries?
A: Yes, we can supply genuine or compatible DH+ cables, serial cables, and replacement batteries (1756-BATM or equivalent).
Q: How do I know the processor is fully functional?
A: Each unit undergoes a comprehensive test including power-up, memory integrity check, communication port loopback, and load testing with a sample program.
Q: Can I order a custom firmware version?
A: Firmware is factory-set. Custom firmware is not available for this model, but we can provide the latest standard revision. Please inquire about availability.
Q: What are the shipping options to Europe?
A: We ship from our European warehouse (Germany) via DHL, FedEx, or sea freight. Typical delivery to EU countries takes 3–5 business days.
Q: Does the price include tax or customs duties?
A: All prices are EXW (Shenzhen) or FOB (Hong Kong). Import duties and taxes are the buyer’s responsibility. We can provide a commercial invoice for customs clearance.