The Allen-Bradley PLC5-40 is a processor module used in industrial control systems, featuring firmware revisions K, J, H, and D.
It is compatible with both Series A and Series C modules, making it versatile for various applications. This module supports 8-point input functionality, as indicated by its association with the 1771-IXE/A and 1771-IXE/D input modules. It is commonly found in Series A and Series C configurations, ensuring robust performance in industrial environments.