Description

Allen Bradley 1769-L33ERMS Compact GuardLogix 5370 Controller

The Allen Bradley 1769-L33ERMS, also cataloged as the 1769-L33ERMS Compact GuardLogix Controller, operates as a dedicated hardware component for safety logic execution and motion control within EtherNet/IP industrial control networks.

Hardware Specifications

Parameter	Specification
Model	1769-L33ERMS
Brand	Allen Bradley
Origin	USA
Product Type	Compact GuardLogix Controller
Product Line	CompactLogix
Weight	1.25 lbs (0.57 kg)
Application Memory	2 MB
Safety Memory	1 MB
Non-volatile Memory	1 GB via 1784-SD1 memory card
Integrated Motion	Yes
Maximum Motion Axes	8 axes
Local I/O Capacity	Up to 16 Compact I/O modules
Expansion I/O Banks	3 expansion I/O banks
Ethernet Communication Ports	2 EtherNet/IP ports
USB Interface	1 Type B 2.0 Full-Speed USB port
Ethernet Communication Rate	10 Mbps / 100 Mbps
USB Communication Rate	12 Mbps
Maximum Connections	256
Ethernet/IP Nodes	32 nodes
Controller Tasks	32 tasks
Programs per Task	1000
SIL Rating	SIL 3
Programming Languages	Ladder Diagram, Structured Text, Function Block Diagram, Sequential Function Chart

EtherNet/IP Deterministic Network and I/O Scaling

The 1769-L33ERMS uses EtherNet/IP communication interfaces to exchange controller data across industrial networks. The dual Ethernet ports support network topology configurations and provide communication access for distributed I/O devices.

Additionally, the controller supports Compact I/O expansion with up to 16 local modules and 3 expansion I/O banks. This architecture allows engineers to scale digital, analog, and specialty I/O configurations according to application requirements.

The controller firmware supports integrated motion execution and safety functions within the Compact GuardLogix platform. Therefore, it can manage standard control tasks, safety logic, and motion operations through a single controller environment.

Frequently Asked Questions

Q: What communication interfaces are available on the 1769-L33ERMS controller?
A: The controller provides two EtherNet/IP ports and one Type B 2.0 Full-Speed USB interface for programming and communication functions.

Q: How much memory does the 1769-L33ERMS provide for standard and safety applications?
A: The controller provides 2 MB of application memory and 1 MB of safety memory for control and safety logic execution.

Q: Does the 1769-L33ERMS support integrated motion control?
A: Yes. The controller supports integrated motion functionality with a maximum capacity of 8 motion axes.

Field Installation Guidelines

Install the 1769-L33ERMS controller on a compatible CompactLogix chassis according to the system hardware configuration requirements.

Maintain proper Ethernet cable routing and separate communication wiring from high-voltage power conductors to reduce electrical interference. Use appropriate grounding methods for shielded communication cables based on site electrical standards.

Before commissioning, verify the controller firmware compatibility with the connected Compact I/O modules, safety configuration, and programming software environment. Confirm EtherNet/IP node addressing and network communication parameters before placing the controller into operation.

Specifications

• Brand: Allen Bradley

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems