Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
The 6ES5946-3UA23 is a SIMATIC S5 CPU 946 central processing unit designed for S5-155U programmable logic controller (PLC) systems within the Simatic S5 product range. Manufactured by Siemens, this high-performance processor is engineered to manage complex control logic, coordinate system tasks, and execute automation programs in large-scale industrial environments.
The 6ES5946-3UA23 provides dependable computing power required for heavy-duty manufacturing and process automation infrastructure. The unit features physical dimensions of 32.50 x 34.00 x 9.00 cm and weighs 1.10 kg. As an obsolete lifecycle product, it is utilized primarily for legacy system maintenance, direct hardware replacement, and operational continuity in established S5 automation installations.
| Technical Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Brand | Siemens |
| Range | Simatic S5 |
| Subrange | S5-135/155 |
| Type of product | Standard CPUs |
| Product Phase | Obsolete |
| Dimensions | 32.50 x 34.00 x 9.00 cm |
| Weight | 1.10 kg |
| Commodity Code | 85389091 |
| Export Control Regulations (ECCN) | N |
Global Express Shipping
Returns & Warranty







The 6ES5946-3UA23 is a SIMATIC S5 CPU 946 central processing unit designed for S5-155U programmable logic controller (PLC) systems within the Simatic S5 product range. Manufactured by Siemens, this high-performance processor is engineered to manage complex control logic, coordinate system tasks, and execute automation programs in large-scale industrial environments.
The 6ES5946-3UA23 provides dependable computing power required for heavy-duty manufacturing and process automation infrastructure. The unit features physical dimensions of 32.50 x 34.00 x 9.00 cm and weighs 1.10 kg. As an obsolete lifecycle product, it is utilized primarily for legacy system maintenance, direct hardware replacement, and operational continuity in established S5 automation installations.
| Technical Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Brand | Siemens |
| Range | Simatic S5 |
| Subrange | S5-135/155 |
| Type of product | Standard CPUs |
| Product Phase | Obsolete |
| Dimensions | 32.50 x 34.00 x 9.00 cm |
| Weight | 1.10 kg |
| Commodity Code | 85389091 |
| Export Control Regulations (ECCN) | N |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
Germany
|
| Power source |
AC-powered
|