Siemens 6ES5926-5AA12 CPU Module

This CPU module executes user logic for SIMATIC S5 automation systems. It manages I/O data and communication tasks for industrial control applications. Therefore, this component suits mid-sized automation projects in manufacturing and process industries.

Physical Dimensions and Weight Specifications

The Siemens 6ES5926-5AA12 occupies one standard slot in the S5 rack. Its housing measures 233 mm in depth for backplane connectivity. The module weighs approximately 0.60 kg for straightforward handling. Consequently, technicians can install this unit without additional rack reinforcement.

Interface Types and Connection Layout

The Siemens 6ES5926-5AA12 provides one RS-232 port for programming access. A second RS-422 interface supports connection to remote operator panels. The front panel carries a 20-pin connector for external expansion modules. Hence, users can access the CPU using standard Siemens cables.

Component Count and Onboard Memory

This CPU module contains one main board with a 16-bit microcontroller. The board includes 48 KB of RAM for user program execution. You will also find 96 KB of EPROM for non-volatile storage. An onboard lithium battery retains RAM data for up to 250 days.

Energy Storage and Power Consumption

The Siemens 6ES5926-5AA12 draws 190 mA from the 5V backplane supply. A lithium coin cell provides backup power for the RAM storage. This battery maintains program and data for 250 days without external power. Therefore, the CPU retains critical information during extended plant shutdowns.

Processing Speed and I/O Capacity

The processor executes 1.3 microseconds per bit logic instruction. It handles up to 384 digital I/O points within a single scan. Users can store up to 384 function blocks in the EPROM memory. This capacity supports moderate automation tasks for conveyors and packaging machines.