1785-L80B Product datasheet  

1785-L80B Functional Description

The 1785-L80B Controller Module is a key component of the Allen-Bradley PLC-5 series, designed to integrate local, extended, and remote I/O modules into a single control system. The 1785-L80B Controller Module features four configurable ports—channels 1A, 1B, 2A, and 2B—that can operate as remote I/O scanners, remote I/O adapters, or DH+ communication interfaces. These ports enable the 1785-L80B to facilitate efficient communication within the control system.

Using the Data Highway Plus (DH+) link, the 1785-L80B Controller Module enables seamless peer-to-peer communication between PLC-5 controllers and other system components. Remote I/O connections allow real-time data exchange between the controller, I/O devices, and operator interfaces. The 1785-L80B Controller Module also supports multiple protocols, including ASCII and DF1, via its 25-pin RS232C connector (channel 0) for easy programming and monitoring.

On the front panel, the 1785-L80B Controller Module features status indicators like PROC, FORCE, and COMM to provide real-time feedback on the controller’s operation. These indicators, along with the four communication channels, make the 1785-L80B a versatile and reliable choice for complex automation tasks.