Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L36ERMS |
| Spare Model | 1769L36ERMS |
| Brand | Allen-Bradley |
| Product Line | CompactLogix |
| Product Type | Programmable Automation Controller |
| Module Type | Processor Module |
| Product Parameters | Compact GuardLogix CPU, L36ERMS, 3M/1.5M |
| Communication Ports | 2 Ethernet I/P ports; 1 USB client port |
| Integrated Motion | EtherNet/IP |
| Integrated Motion Axes | 4 |
| Memory | 1 MB |
| Controller Tasks | 32 |
| Programs per Task | 1,000 |
| Connections | 256 |
| Network Nodes | 48 |
| Maximum Supported I/O Modules | 8 |
| Operating Temperature | 0 to 60 deg C (32 to 140 deg F) |
| Operating Vibration | 10 to 500 Hz, 5 G, 0.030 in peak-to-peak |
| Shipping Weight | 3 lb |
| Product Weight | 0.7 kg |
| Estimated Shipping Dimensions | 18 x 12.8 x 12 cm |
| Country of Origin | USA |
| HS Code | 8537101190 |
Processor and Motion Control
The controller executes application logic through its task and program structure. The specified capacity of 32 controller tasks and up to 1,000 programs per task describes its application organization limits; actual project capacity also depends on program complexity and controller resources.
EtherNet/IP supports communication with compatible automation devices and provides the stated integrated motion capability for up to four axes. Confirm the required drive interfaces, motion configuration, and network architecture against the intended system design before selecting the controller.
Network and I/O Capacity
The controller has two Ethernet I/P ports for network communication and supports up to 48 EtherNet/IP nodes. The supplied model-specific product description identifies a 30-module I/O expansion capacity, which differs from the generic specification of eight modules. Verify the planned I/O configuration against the controller’s installation requirements.
Integrated Safety Function
The 1769-L36ERMS combines standard controller memory with dedicated safety memory, supporting integrated safety functionality within the Compact GuardLogix platform. Its specified memory configuration is 3 MB standard memory and 1.5 MB safety memory, rather than the 1 MB listed in the generic parameter set.
Frequently Asked Questions
Q: How much memory does the 1769-L36ERMS provide?
A: The controller provides 3 MB of standard memory and 1.5 MB of safety memory. These are separate memory allocations for standard control and safety applications.
Q: How many motion axes does this controller support?
A: The model-specific specification lists up to 16 axes of CIP Motion over EtherNet/IP. The four-axis figure in the supplied generic data does not match this model’s published configuration.
Q: What should be checked before replacing an existing controller?
A: Verify the controller catalog number, safety application requirements, I/O expansion, motion-axis count, network configuration, and project compatibility. Do not assume that a controller with a similar model number provides the same safety or motion capabilities.
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