Description.

The 1785-L80B is an Allen-Bradley Enhanced PLC5 programmable logic controller (PLC).

The controller has 100.000 words of embedded user memory and is equipped with several communication interfaces.

Examples include four (4) DH/Remote I/O (adapters or scanners), one (1) configurable RS-232. -423. and RS-422A compatible serial port, and two (2) programming terminals.

It can accommodate up to 3072 arbitrary www.cniacs.com mixes or 3072 inputs and 3072 outputs in free mode!

About the 1785-L80B

The Programmable Controller 1785-L80B is the core component of every control system based on the Allen-Bradley PLC-5 Series.

The 1785-L80B connects local, expansion, and remote I/O modules on a variety of communication interfaces into a single control system.

There are four built-in ports on the 1785-L80B controller. The ports are labelled Channel 1A, Channel 1B, Channel 2A and Channel 2B.

All ports can be configured as remote I/O scanners, remote I/O adapters, and DH communication interfaces.

DH communications can be used both for remote programming and monitoring of the 1785-L80B and for creating peer-to-peer communication networks between various PLC-5 controllers.

The Remote I/O connection is used for real-time data exchange between the controller and I/O, operator interface and other functions.

All four channels on the 1785-L80B can be used as either remote I/O scanners or remote I/O communications adapters.