1769-L33ER Allen-Bradley CompactLogix Controller

Allen-Bradley 1769-L33ER CompactLogix EtherNet/IP Controller

Allen-Bradley 1769-L33ER CompactLogix EtherNet/IP Controller

Availability: 99 left in stock

Allen-Bradley 1769-L33ER CompactLogix Processor Configured for integrated CIP Motion execution and high-speed packet processing in CompactLogix 5370 L3 systems, the...

SKU: 1769-L33ER/A

Manufacturer: Allen Bradley
Product No.: 1769-L33ER/A
Product Type: Programmable Automation Controllers
Product Origin: USA
Payment:T/T, Western Union
Weight: 310g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1769-L33ER CompactLogix Processor

Configured for integrated CIP Motion execution and high-speed packet processing in CompactLogix 5370 L3 systems, the Allen-Bradley 1769-L33ER Series A (1769-L33ER Programmable Automation Controller) provides direct physical/electrical execution.

Hardware Specifications

Parameter	Specification
Model	1769-L33ER Series A
Brand	Allen-Bradley
Origin	USA
Weight	0.31 kg (0.68 lbs)
Dimensions	Standard 1769 chassis module footprint
Operating Temp	0 to +60 deg C
Power Consumption	560 mA at 5 VDC, 225 mA at 24 VDC
User Memory	2 MB volatile user memory
Non-Volatile Memory	1 GB SD card included (supports up to 2 GB)
Local I/O Expansion	Up to 16 modules (maximum 3 I/O banks)
Network Capacity	Up to 32 EtherNet/IP nodes
Motion Control	8 axes of CIP Motion (servo and inverter)
Communication Ports	2 x Ethernet RJ45 (embedded switch), 1 x USB 1.1 device port
Topologies	Device Level Ring (DLR), Linear, Star

EtherNet/IP Deterministic Networks and I/O Density Scaling

The processor manages cyclic and explicit traffic over EtherNet/IP deterministic networks, supporting embedded Device Level Ring (DLR) fault-tolerant ring topologies without requiring external network taps. Internal logic circuits coordinates backplane bus communication velocity across up to 16 local 1769 I/O modules, enforcing I/O density scaling limitations across a maximum of 3 physical expansion banks. An embedded energy storage module replaces lithium batteries, driving data retention routines to transfer volatile user logic into non-volatile flash memory upon sensing power decay. Firmware flash compatibility via Studio 5000 Logix Designer enables synchronized axis control across 8 CIP Motion drives while preserving real-time task priorities.

Frequently Asked Questions

Q: How does the controller preserve volatile program memory during an abrupt power loss?

A: The module incorporates an internal energy storage module (ESM) that maintains system logic power long enough to automatically write volatile memory contents to the onboard non-volatile SD card upon power degradation, removing battery maintenance requirements.

Q: What power supply and expansion cable limits apply when configuring 16 local I/O modules?

A: The 1769-L33ER supports a maximum of 16 local modules installed across no more than 3 expansion banks. Each additional bank requires a dedicated 1769 power supply (such as 1769-PA2 or 1769-PB2) and a 1769 bus expansion cable, maintaining proper power distance ratings.

Field Installation Guidelines

Mount the processor onto a grounded 35 mm DIN rail or install directly onto an enclosure panel using M4 mounting screws. Ensure adjacent 1769 end caps and I/O modules lock securely into the right-hand side backplane connector interface prior to applying system power.

Connect CAT5e or CAT6 industrial shielded twisted-pair cables to the dual front RJ45 ports for linear or DLR Ethernet networking. Connect the enclosure DIN rail and chassis ground wire directly to the main system earth bar using a short, low-impedance copper strap to prevent electrical noise interference on the 1769 backplane bus.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.