1756-L55M13 Product datasheet    

1756-L55M13 Functional Description    

The Allen-Bradley 1756-L55M13 is a Series A ControlLogix 5555 controller, known for its impressive memory capacity and versatile communication options. With 1.5 Mbytes of data and logic memory and 208 kbytes for I/O, it offers ample storage for complex control tasks. However, it lacks nonvolatile memory, meaning configurations would need to be backed up externally. The 1756-L55M13 weighs 12.5 oz (0.35 kg) and is an open-style controller without an enclosure type rating, giving it flexibility for various applications.

In terms of communication, the PLC Processor Module 1756-L55M13 supports DeviceNet, ControlNet, Ethernet/IP, Universal Remote I/O serial, Data Highway Plus, Modbus via ladder routine, SynchLink, and DH-485, making it adaptable to many industrial environments. Its backplane currents are 0.014A at 24V DC and 1.23A at 5.1V DC, and it has a thermal dissipation of 19.1 BTU/hr with a power dissipation of 5.6W.

The 1756-L55M13 Series A ControlLogix 5555 controller is built to withstand challenging conditions. It operates between 0 to 60°C, with a storage range of -40 to 85°C and supports 5% to 95% non-condensing relative humidity. It has a vibration tolerance of 2 g at 10 to 500 Hz and can handle 30 g shock during operation and 50 g shock when not in use. The 1756-L55M13 also features a continuous isolation voltage of 30V and has been tested to withstand 707V DC for up to 60 seconds.

For power backup, the controller uses the 1756-BA1 lithium battery, and while the battery can be replaced, it is only necessary under specific circumstances. It is compatible with 1756-CP3 and 1747-CP3 programming cables and can be integrated into a redundant controller system, provided both controllers are part of the same ControlNet network. This makes the 1756-L55M13 Powerful Processor Module a highly reliable and flexible controller for demanding industrial applications.