Allen-Bradley 1769-L33ERM CompactLogix 5370 L3 Integrated Motion Controller

Product Overview

The Allen-Bradley 1769-L33ERM acts as a high-performance central processor within the CompactLogix 5370 L3 family. This controller excels in medium-to-large scale automation tasks, specifically those requiring synchronized motion control over EtherNet/IP. It eliminates the need for separate motion modules by supporting up to 8 axes of integrated motion. We supply this unit as 100% brand new and original equipment, ensuring full factory performance and compatibility for your control architecture.

Technical Specifications

The 1769-L33ERM utilizes a robust hardware set to manage complex logic and motion profiles:

• Memory/Tasks: 32 Tasks with 100 Programs per Task

• Motion Support: 8 Axes of Integrated Motion over EtherNet/IP

• Ethernet Connectivity: 2 Ports (supports Device Level Ring - DLR topologies)

• Node Capacity: 32 Ethernet/IP Nodes

• Controller Connections: 256 Maximum Connections

• Local I/O Capacity: Supports up to 16 1769-series expansion modules

• USB Interface: 1 Port for programming, configuration, and firmware updates

• Environmental Range: 32°F to 140°F (0°C to 60°C) operating temperature

• Weight: 0.69 lbs (0.31 kg)

Engineering Advantages

• Integrated Motion on EtherNet/IP: This controller streamlines system design by managing 8 axes of motion directly through the Ethernet ports. It removes the requirement for specialized Sercos cards, reducing both hardware costs and wiring complexity.

• Dual-Port Ethernet Versatility: The two onboard Ethernet ports support Device Level Ring (DLR) configurations. This topology ensures the system maintains communication even if a single point in the network cable fails, significantly increasing machine uptime.

• Battery-Free Operation: The 1769-L33ERM utilizes internal energy storage to eliminate the need for lithium batteries. This design reduces long-term maintenance requirements and simplifies global shipping compliance.

• Simplified Commissioning: The dedicated USB port provides a high-speed link for local firmware flashing and program downloads. Engineers can configure the entire controller without pre-configuring an IP address, accelerating the deployment phase of new machinery.

• Legacy Network Bridging: While native to EtherNet/IP, the unit bridges to legacy DeviceNet architectures by adding a 1769-SDN scanner module. This protects existing infrastructure investments while upgrading the CPU logic.

FAQs

• What does the "M" suffix in 1769-L33ERM signify?

  The "M" indicates Integrated Motion capability. This specific model supports CIP Motion, allowing you to synchronize Allen-Bradley Kinetix drives directly over the standard Ethernet network.

• How many 1769 I/O modules can I connect directly to this controller?

  You can connect up to 16 local 1769 I/O modules. However, you must observe the power supply distance rating (typically 4 modules) and use additional 1769 power supplies as required by the expansion bus.

• Can the dual Ethernet ports be assigned different IP addresses?

  No. The two ports function as an internal switch sharing a single IP address. This design specifically supports linear and DLR (Device Level Ring) topologies rather than network bridging between two different subnets.

• Does this unit include the Secure Digital (SD) card?

  Standard new units typically ship with a 1784-SD1 (1 GB) card. This card provides non-volatile memory backup for the user program and tag data, ensuring the system restores logic automatically after a power cycle.