SIMATIC S7-200 SMART CPU CR20 AC/DC / Relay
SIMATIC S7-200 SMART CPU CR20 AC/DC / Relay - Image 2

SIMATIC S7-200 SMART CPU CR20 AC/DC / Relay

SKU: 6ES7288-1CR20-0AA1 Categories: ,

$119.75 – $133.06

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CPU CR20s, compact CPU (non-expandable) — 12DI/8DO relay, 20KB program/data memory. IMPORTANT: the Compact (CR) line CANNOT be expanded with EM modules or signal boards, unlike the Standard (ST/SR) line. [VERIFIED via Siemens official datasheet]

Technical Specifications

Product Line Compact (CR) — non-expandable, single-body unit
Digital I/O 12 DI 24V DC / 8 DO Relay 2A
Power Supply AC 85–264V, 47–63Hz
Program/Data Memory 20 KB
Key Difference from ST/SR line Cannot accept EM expansion modules or signal boards — fixed I/O count for the life of the unit
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 Compact (CR) line is designed for simple, fixed-scope control requirements where the I/O count will never need to change — choose the Standard (ST/SR) line instead if any future I/O expansion is anticipated.

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