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6ES5921-3WB13
Siemens Simatic S5 CPU921 Processor Module

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2 year warranty 2 year warranty*

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*Manufacturer's warranty does not apply

Simatic S5 CPU921 Processor Module
Description

About this product

Here is all you need to know


The Siemens 6ES5921-3WB13 is a processor module for the S5-135 series of programmable controllers. The module is often referred to as the CPU 921 Processor module. The module is designed for binary signal processing (open-loop control tasks) and can be used in single or multiprocessor operations.

The CPU 921 has a wealth of features including:

  • A plugin RAM or Eprom submodule with a maximum of 64 kbytes for instructions and data of the user program (for CPU 921 and CPU 922)
  • A 7.4 kbyte integrated data memory (DB-RAM) for data of the user program 
  • 2049 flags, 128 times, 128 countes
  • Processing from up to 4096 binary inputs/outputs each
 
PDFs

The Specs

The below specs apply to this product

ManufacturerSiemens
Alternative Partnumber6ES5 921-3WB13
Range typeProcessor Module
RangeSimatic S5
PDFs

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