1756-L61S: GuardLogix Controller for ControlLogix Systems
The 1756-L61S is the GuardLogix Controller for ControlLogix Systems covered on this page. The attribute that decides whether it fits the existing installation without modification is 3.5 W.
What separates this variant from its siblings is guardlogix controller for controllogix systems. A processor or controller is selected on memory, scan time and platform compatibility before anything else. guardlogix controller for controllogix systems sets how much programme fits, how fast the logic executes and which I/O and networks the unit can host — the three things that decide whether an existing application migrates without a rewrite. Confirming 3.5 W against the installed controller family is the check that prevents a processor that boots but cannot run the existing project.
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1756-L61S |
| I/O Memory | 478 KB |
| User Memory | 2 MB |
| Maximum I/O | 128,000 |
| Maximum Analog I/O | 4,000 |
| Maximum Digital I/O | 128,000 |
| Current Draw (5.1V DC) | 1200 mA |
| Current Draw (24V DC) | 14 mA |
| Power Dissipation | 3.5 W |
| Thermal Dissipation | 11.9 BTU/hr |
| Isolation Voltage | 30V Continuous |
| Enclosure | Open-Style |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-l61-controllogix-processor-module-overview | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-L61S |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
