Catalogs > Automation Systems Catalog > Programmable Controllers > SLC 500 System > SLC System Overview
SLC System Overview
Communication
An SLC processor communicates across the 1746 backplane to 1746 I/O modules in the chassis in which the processor resides. Various models of SLC processors have various on-board ports for communication with other processors or computers. Also, separate modules are available to provide additional communication ports for communication with other processors, computers, and remotely located I/O.
Each SLC processor has one or two built-in ports for either EtherNet/IP, DH+, DH-485, or RS-232 (DF1, ASCII, or DH-485 protocol) communication.
In addition to the on-board ports available with SLC processors, you have the option of providing additional communication ports for an SLC processor by adding communication modules.
I/O adapter modules for 1746 I/O are available for ControlNet and Universal Remote I/O links. An I/O adapter module in a chassis with I/O modules interfaces the I/O modules with the I/O link for communication with a scanner port for a processor at another location.
SLC 5/05 processors include a built-in web server that lets you use an Internet browser to view processor module information—including the data table memory map, data table monitor screen, and user provided web pages—plus TCP/IP configuration, and diagnostic information. Domain Name Server (DNS) capability lets you address the SLC 5/05 processor by a user-specified name rather than its IP address.
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