Overview
The Allen-Bradley 1764-LSP /A /C is a MicroLogix 1500 processor unit designed for compact industrial automation and control applications. This controller is a MicroLogix 1500 processor featuring 7KB integrated memory partitioned into 3.6KB user program and 4KB user data. The 1764-LSP was declared discontinued on 06/30/2017, making this unit available as a spare part for legacy system upgrades and replacements.
Key Features
- Program execution time of approximately 1 ms for a 1K-word program including counter, bit, math instructions, and timer
- One non-isolated RS-232-C port with ASCII, DF1 half-duplex, DF1 full duplex, DH-485, and Modbus protocols
- Two built-in trim potentiometers with 0-250 volt digital output range for easy adjustment of counters, set points, and timers
- Supports up to eight local I/O modules and expansion back with 512 maximum inputs and outputs
- Integrated RS232 port enables communication with HMI, SCADA, RTU devices, and programming workstations
Technical Specifications
The controller features integrated 7K user program capacity with total combined 3.65 KB user program and 4 KB user data memory. Program and data file sizes are user-configurable with maximum user data capacity of 4K words; long-integer (32-bit) and floating point data files are supported.
Typical Applications
The 1764-LSP provides control functionality for compact automation systems and is ideal for small machine-level applications where cost-effective and scalable control is needed, often used in packaging, materials handling, and HVAC control systems.
Compatibility & Replacements
This processor can be installed with MicroLogix base units such as 1764-24AWA, 1764-24BWA, and the 1764-28BXB. Compatible memory and real-time clock modules include 1764-MM1, 1764-MM2, 1764-MM3, 1764-MM1RTC, 1764-MM2RTC, 1764-MM3RTC, and 1764-RTC. The RS232 port supports connection with PanelView 800 using the 1761-CBL-PM02 cable. For applications requiring larger memory capacity, the 1764-LRP processor offers 14KB memory as an alternative.
