CS513 is designed as ABB Advant Controller 450 system MasterBus 300/300E communication module. Each interface holds one line. As a submodule, CS513 work with SC520.

MasterBus 300 or MasterBus 300E is selected with a switch on the submodule CS513. The user “straps” network, node, slave number and protocol on dip-switches on the communication interface board CS513. From the network communication viewpoint, the system is then automatically configured at power-up. In addition to the data base element CS513, which shows basic communication parameters, further parameters are found in the elements NETWL, TL, TU, BM, NM. Those latter elements are meant for advanced users.