1756-L1: ControlLogix 5550 Controller 64KB User Memory
The 1756-L1 is the ControlLogix 5550 Controller 64KB User Memory covered on this page. The attribute that decides whether it fits the existing installation without modification is 0 to 60 °C.
This configuration's controllogix 5550 controller 64kb user memory is the attribute that drives the replacement decision. A processor or controller is selected on memory, scan time and platform compatibility before anything else. controllogix 5550 controller 64kb user memory 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 0 to 60 °C 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-L1 |
| User Memory | 64 KB |
| Connections | 250 |
| Backplane Current at 5V DC (Peak) | 0.65 Amps |
| Backplane Current at 24V DC (Peak) | 0.02 Amps |
| Average Power Dissipation | 3.3 Watts |
| Average Thermal Dissipation | 11.3 BTU/hour |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Non-Condensing Relative Humidity | 5% to 95% |
| Operating Shock | 30 G peak for 11 ms |
| Storage Shock | 50 G peak for 11 ms |
| Vibration | 10 to 500 Hz at 2.0 G max peak acceleration |
| Weight | 0.28 kg (10 oz) |
| Enclosure | Open. |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-l1m1-controllogix-5550-processor-module-overview | confirm the configuration against your installation |
| allen-bradley-1756-l1m2-controllogix-5550-processor-module-1-mb | confirm the configuration against your installation |
| allen-bradley-1756-l1m3-controllogix-5550-processor-module-2-mb | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-L1 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
