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 mixes or 3072 inputs and 3072 outputs in free mode!

About the 1785-L80B

The Programmable Controller 1785-L80B is the core dcs-sis.com 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.

The 1785-L80B is designed with multiple communication interfaces that can be used to communicate with different automation devices simultaneously.

It has four (4) DH/Remote I/Os (adapters or scanners) labelled CH1A, CH1B; CH2A and CH2B;.

One (1) configurable serial port for RS-232 and RS-422A electrical standards supporting the DF1 protocol, and two (2) programming terminals.

The 1785-L80B is capable of communicating with up to 93 I/O chassis and up to 32 Remote I/O (RIO) racks.

Enhanced PLC 5 controllers, such as the 1785-L80B, are primarily used when the control system needs to communicate with a large number of remote I/O (RIO) devices and when connecting to a large number of Data Highway+ (DH) devices.

For installation, the 1785-L80B can be mounted in the 1771-A1B, 1771-A2B, 1771-A3B, 1717-A3B1. and 1771-A4B PLC5 chassis.

Power supplies supported by this processor include the 1770-P1. 1770-P45. 1770-P5. 1771-PE, 1771-P4S1. 1771-P6S1. 771-P4R, and 1771-P5R.

It is also used to configure I/O modules and expansion racks.