| Brand | Allen-Bradley |
| Processor | PLC-5/40L |
| Module Type | Standard Processor |
| User Memory | 48K Words (Battery-Backed SRAM) |
| Manufacturer | Rockwell Automation |
| Max Total I/O | 2,048 points |
| Max Analog I/O | 2,048 points |
| Max I/O Chassis | 61 total (16 Extended Local, 32 Universal Remote per I/O link) |
| Protected Memory | No |
| EEPROM Program Backup | Supported (1785-ME16, -ME32, -ME64, -M100) |
| I/O Scan Time per Rack | 0.5 ms (Extended Local), 10 ms @ 57.6 kbps, 7 ms @ 115.2 kbps, 3 ms @ 230.4 Mbps (Remote I/O) |
| Part Number/Catalog No. | 1785-L40L |
| Serial Communication Port | 1 RS-232-C/422-A/423-A |
| Control Coprocessor Expansion Port | Yes |
Does the Allen-Bradley 1785-L40L come with a warranty?
Yes. The 1785-L40L is backed by our 24-Month Replace Industrial Warranty, with no rush fees or hidden warranty charges. If a unit fails under normal use within the warranty period, we repair or replace it.
Is this 1785-L40L a genuine Allen-Bradley part?
The 1785-L40L is sourced and verified independently. Replace Industrial, LLC is not a Rockwell Automation Authorized Distributor, and all warranties are provided directly by Replace Industrial.
Is the Allen-Bradley 1785-L40L new or used?
We offer the 1785-L40L in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.
What is the Allen-Bradley 1785-L40L?
The 1785-L40L is an Allen-Bradley PLC-5 Standard Processor.
How fast does the 1785-L40L ship?
In-stock orders for the 1785-L40L ship the same day when placed before our daily cutoff. Expedited and same-day air options are available if you are facing downtime, with no rush fees. Our team is based in Raleigh, North Carolina.
1785-L40L
The Allen-Bradley 1785-L40L is a Standard Processor module from the PLC-5/40L series designed for flexible and reliable control in industrial automation. It features 48K words of battery-backed SRAM with optional EEPROM program backup, providing enhanced data protection. Supporting up to 2,048 total I/O points, this module offers robust performance with fast scan times—0.5 ms per rack for extended local I/O and up to 3 ms per rack for remote I/O. With compatibility for up to 61 I/O chassis, including 16 extended local and 32 universal remote per I/O link, the 1785-L40L includes a serial communication port and a control coprocessor expansion port to enhance connectivity and expandability in complex systems.
All products are covered by our 2-Year (24-Month) Replace Industrial Warranty. If a unit is found defective under normal use within the warranty period, we repair or replace it at no additional cost, and a unit may be returned for a full refund within 30 days if returned in the same condition it was sent.
Replace Industrial is an independent distributor and does not convey the manufacturer's warranty; all warranties are provided by Replace Industrial alone. Read the full warranty policy
We repair a wide range of industrial automation equipment, including PLCs, HMIs, drives, servo motors, switches, and circuit breakers, with rush service for critical downtime. Request a quote, ship your unit, and we diagnose, repair, and return it. Request a repair quote
Our standard shipping method is UPS Ground. We can also ship on your FEDEX or DHL account.
We can ship many items our the same day via Overnight or 2 Day Shipping.
We currently only collect tax from customers in the state of North Carolina. If you are exempt on your purchase, please email your Sales Tax & Use Exemption Form to sales@replacenc.com.
If you are checking out via a quote we send you, there is an option to upload your form at the time of purchase.
If you have already placed an order, please send us your form and we can refund the charged taxes.
