SIMATIC S7-200 SMART V3.0 PLC CPU ST40 Standard CPU Module, DC/DC/DC, 24 Inputs/16 Outputs
SIMATIC S7-200 SMART V3.0 PLC CPU ST40 Standard CPU Module, DC/DC/DC, 24 Inputs/16 Outputs - Image 2

SIMATIC S7-200 SMART V3.0 PLC CPU ST40 Standard CPU Module, DC/DC/DC, 24 Inputs/16 Outputs

SKU: 6ES7288-1ST40-0AA2 Categories: ,

$371.78 – $413.09

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CPU ST40, firmware V3.0 — 80KB program/data memory (up from 40KB on older -0AA0/-0AA1), dual-port Ethernet, dual signal board slots (up to 8 expansion modules), motion functions (CAM/gear), web server support. [VERIFIED via Siemens official datasheet]

Technical Specifications

Variant ST40 DC/DC/DC
Digital I/O 24 DI 24V DC / 16 DO 24V DC
Power Supply DC 20.4–28.8V
Program/Data Memory 80 KB (V3.0; older -0AA0/-0AA1 versions: 40KB)
V3.0 Hardware Upgrades Dual-port connectivity, dual signal board slots (vs. 1 on older versions), up to 8 expansion modules, CAM/gear motion functions, web server
Security Note Per CISA advisory ICSA-24-165-02, S7-200 SMART CPU firmware versions affected by CVE-2024-35292 (predictable IP ID sequence number, CVSS up to 8.8) should be checked and updated where a network-facing deployment is planned.

Typical Applications

The V3.0 CPU generation represents a genuine hardware upgrade over the older -0AA0/-0AA1 ST40, not just a firmware refresh — the doubled memory, dual signal board capacity, and motion/web-server functions make it suited for more complex standalone machines than the original ST40.

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