Siemens 6ES5923-3UC11 Industrial Control System Interface Module

Siemens 6ES5923-3UC11 is a SIMATIC S5 coordinator module (923C) designed for use with the central controller CC 135U/155U. As an IP 244B interprocessor communication processor, it coordinates access for two to four CPUs in a CC 135U/155U system and supports the programming and startup of multiple CPUs and communications processors. The module provides a Central Programming Device Port with a multiplexer for configuring and initiating CPUs in multi-CPU configurations. It includes 2048 interprocessor communication bit memories to support fast IPC data exchange between CPUs. Compatible with Siemens S5 CPUs such as S5-115U/H, S5-135U, and S5-155U/H, the 6ES5923-3UC11 serves as a spare part for maintaining multi-CPU S5 installations and ensures coordinated control in ZG 135U/155U setups.