Manufacturer: Rockwell Automation
Brand: Alan Bradley
Part Number/Catalog number: Model 1756-L55M23
Series: ControlLogix
Module type: Processor module
The Allen-Bradley 1756-L55M23 is a ControlLogix controller in the Logix5000 series of controllers. It has 1.5 KB of data and logic memory, 208 KB of I/O memory, and integrated non-volatile backup memory. The 1756-L55M23 has a Logix CPU and a backplane CPU to allocate its resources. Application code and messages are executed by the Logix CPU, and the backplane CPU sends and receives data from the backplane and communicates with I/O.
The 1756-L55M23 controller is connected to a workstation or other controller via a serial port. The 1756-CP3 serial cable is used to connect the controller to the workstation. In order to communicate with other devices, it uses various networks such as Ethernet /IP, ControlNet, DeviceNet, etc. The 1756-L55M23 can generate and use system share tags over EtherNet/IP or ControlNet networks. Both producers and consumers need a connection.
