1756-L74: Programmable Automation Controller
The 1756-L74 is the Programmable Automation Controller covered on this page. The attribute that decides whether it fits the existing installation without modification is 2.5 Watts.
On this unit programmable automation controller is the figure that decides fit and function. A processor or controller is selected on memory, scan time and platform compatibility before anything else. programmable automation controller 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 2.5 Watts 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-L74 |
| Maximum Analog I-O | 4000 |
| Maximum I-O | 128000 |
| Module Type | Processor Module |
| Series | ControlLogix |
| Part Number/Catalog No. | 1756-L74 |
| Product Type | Programmable Automation Controller |
| Non-volatile memory | 1GB (ships with the controller) |
| No. of task | 32 |
| Programs per task | 100 Programs |
| Event Task | All Triggers |
| Built-in communication | 1 USB port |
| Optional Communication adapters | EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink, Third-party process and device networks |
| Redundancy | Full Support |
| Integrated Motion | SERCOS interface, Analog options (encoder input, LDT input, SSI input), Integrated Motion on the EtherNet/IP network |
| I-O Memory | 0.98 MB |
| User Memory | 16 MB |
| Maximum Digital I-O | 128,000 |
| Current Draw (1.2 Volts DC) | 5 milliamps |
| Current Draw (5.1 Volts) | 800 milliamps |
| Power Dissipation | 2.5 Watts |
| Thermal Dissipation | 8.5 BTU per hour |
| Isolation Voltage | 30 Volts Continuous |
| Enclosure | None |
| UPC | 10612598876041 |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-l71-controllogix-logix5571-processor-module | confirm the configuration against your installation |
| allen-bradley-1756-l71k-controllogix-logix5571-processor-module-with-confor | confirm the configuration against your installation |
| allen-bradley-1756-l71s-guardlogix-5570-safety-controller | confirm the configuration against your installation |
| allen-bradley-1756-l72-controllogix-logix5572-processor-4mb-memory | confirm the configuration against your installation |
| allen-bradley-1756-l72k-controllogix-logix5572-processor-module | confirm the configuration against your installation |
| allen-bradley-1756-l72s-guardlogix-5570-processor-with-4mb-standard-and-2mb | confirm the configuration against your installation |
| allen-bradley-1756-l73-controllogix-logix5673-processor-with-8-mb-memory | confirm the configuration against your installation |
| allen-bradley-1756-l73xt-controllogix-xt-processor-module-8mb | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-L74 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
