1756-L61: ControlLogix Processor Module
The 1756-L61 is the ControlLogix Processor Module covered on this page. The attribute that decides whether it fits the existing installation without modification is 0 to 60 °C.
What separates this variant from its siblings is controllogix processor module. A processor or controller is selected on memory, scan time and platform compatibility before anything else. controllogix processor module 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-L61 |
| User Memory | 2 MB |
| Maximum I/O | 128,000 |
| Maximum Analog I/O | 4,000 Input / 2,000 Output |
| Program Scan Time | 0.08 ms |
| Backplane Current (5V DC) | 1.2 A |
| Backplane Current (24V DC) | 14 mA |
| Weight | 0.71 lb (0.32 kg) |
| Operating Temperature | 0 to 60 °C |
| Relative Humidity | 5 to 95% (noncondensing) |
| Vibration | 10 to 500 Hz |
| Battery | 1756-BA1, 1756-BATM, or 1756-BATA |
| Communication | RS-232 serial port |
| Protocols | ASCII, DF1 full/half-duplex, DF1 radio modem, DH-485, Modbus via logic. |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-l61s-guardlogix-controller-for-controllogix-systems | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-L61 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
