Allen-Bradley 1785-L60B | Scalable PLC5 Processor Module

The 1785-L60B from Allen-Bradley is a high-performance PLC5 processor designed for medium to large industrial applications. It handles up to 3072 I/O points with flexible memory expansion using 1785-ME16, 1785-ME32, or 1785-ME64 modules.

Memory and I/O Capabilities

The 1785-L60B features 64K words of user memory and supports a maximum of 3072 analog or digital I/O points. It accommodates up to 93 I/O chassis, including 24 local and 92 remote slots. Battery-backed static RAM ensures data retention during power loss.

Communication Ports

This module offers four DH+/Remote I/O ports, one configurable RS-232/RS-423/RS-422A serial port, and two programming terminal ports with 8-pin mini-DIN connectors. The processor supports DF1, ASCII, Data Highway Plus (DH+), and Remote I/O protocols for versatile integration.

I/O Configuration Modes

The 1785-L60B supports multiple I/O configurations:

• 2-Slot Mode: Mix of 8-point and 16-point modules, excluding 32-point modules.

• 1-Slot Mode: Mix of 8, 16, and up to two 32-point modules.

• Half-Slot Mode: Mix of 8, 16, and 32-point modules.

Environmental and Physical Specifications

The 1785-L60B operates between 0°C and 60°C with 5–95% non-condensing humidity. It withstands vibration of 2G at 10–500 Hz and shock up to 30G. The processor measures 6.4 × 8.9 × 0.8 cm and weighs 3.06 lbs.

Summary

The 1785-L60B PLC5 processor provides powerful I/O management, flexible memory expansion, and versatile communication options. Its robust design suits complex industrial automation environments requiring reliability and high performance.