Allen-Bradley 1768-L45 | CompactLogix Controller

Product Overview

The 1768-L45 from Allen-Bradley is a CompactLogix controller designed for medium-sized automation applications. It integrates 3MB of memory and provides one fully isolated RS232 communication port for reliable connectivity. This controller supports up to thirty (30) 1769 Compact I/O modules and three (3) expansion banks, offering a scalable solution for various industrial processes.

Its embedded RS232 port supports DF1 full and half duplex as well as DH485 protocols, ensuring versatile communication with other devices. Recommended cables for connection include 1756-CP3 or 1747-CP3, providing right-angle or straight connections with a length of 3 meters. Optional non-volatile memory can be added using the CompactFlash 1784-CF128 for enhanced data storage.

Technical Specifications

Features and Benefits

• 3MB Integrated Memory: Supports larger programs for medium-sized applications.

• RS232 Port: Fully isolated for safe, reliable serial communication.

• Expandable I/O: Handles up to 30 I/O modules across three banks.

• Optional Non-Volatile Memory: Use 1784-CF128 CompactFlash for backup and data retention.

• Vibration Resistant: Operates in harsh industrial environments.

Applications

• Medium-sized process control and automation systems.

• Integration with 1769 Compact I/O for flexible system expansion.

• Industrial applications requiring reliable RS232 communication.

FAQ

Q1: How much memory does the 1768-L45 controller have?
It includes 3MB of integrated memory and optional non-volatile storage with 1784-CF128.

Q2: How many I/O modules can it support?
Up to thirty (30) 1769 Compact I/O modules across three expansion banks.

Q3: Which communication protocols are supported?
The embedded RS232 port supports DF1 full/half duplex and DH485 protocols.

Q4: What cables are recommended for the RS232 port?
Use 1756-CP3 or 1747-CP3 for right-angle or straight connections.

Q5: What is the operating temperature range?
The controller operates between 0°C and 60°C (+32°F to +140°F).