Allen Bradley 1756-CMS1B1 ControlLogix Compute Module

The Allen-Bradley/Rockwell Automation 1756-CMS1B1 module is a compute module. It has been designed and manufactured as part of the ControlLogix modules series.

The ports that the 1756-CMS1B1 compute module comes with include a USB port, a special integrated DisplayPort, and 2 GbE ports. The DisplayPort allows the 1756-CMS1B1 compute module to be connected to a high-definition monitor and the USB port is a USB 3.0 device port for connecting to peripheral OS devices. One of the primary functions of the 1756-CMS1B1 compute module is its ability to communicate directly with either an Allen-Bradley ControlLogix 5570 controller or an Allen-Bradley ControlLogix 5580 controller through the system backplane. The operators can use an API or Application Programming Interface to program custom applications in the operating system.

The Allen-Bradley/Rockwell Automation 1756-CMS1B1 compute module from the ControlLogix series can be used safely in a Pollution Degree 2 type of industrial environment. Additionally, it should only be used in indoor environments. The 1756-CMS1B1 compute module is supplied as open equipment that does not have an enclosure, but it should be installed in an enclosure which will protect it from dust, debris, liquids, and flames. The exact protection rating that the enclosure must provide will be determined by the environment and applications that the 1756-CMS1B1 compute module is used in. The dimensions of the 1756-CMS1B1 compute module are 5.72 x 1.36 x 5.50 inches. The key features of this compute module include a reset button, a 4-character scrolling display, and user-programmable status indicators. It also uses a battery to back up its real-time clock, and the original battery that it ships with will eventually need to be replaced.

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