SIMATIC S7-300 CPU 314 / 6ES7314-1AG14-0AB0

CPU 314 with 128 KB work memory. Specifications refer to hardware 01 and firmware V3.3 in the March 2011 manual; verify supplied revision and project compatibility.

Manufacturer part number: 6ES7314-1AG14-0AB0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-300
CPU designation: CPU 314
Work memory: 128 KB; not expandable
Retentive data block memory: Maximum 64 KB
Maximum MMC load memory: 8 MB
Reviewed hardware version: 01
Reviewed firmware version: V3.3
Engineering requirement in reviewed manual: STEP 7 V5.5 + SP1 or STEP 7 V5.2 + SP1 with HSP 218
Minimum bit operation time: 0.06 microseconds
Document pages: PDF 311; interfaces/dimensions PDF317,318
Reviewed document edition: 03/2011 / A5E00105475-12
Dimensions (W x H x D): 40 x 125 x 130 mm
Approximate weight: 280 g
Rated CPU supply: 24 V DC
Permissible CPU supply range: 19.2..28.8 V DC
Integrated interfaces: X1 MPI / RS485

Manufacturer manual · 03/2011 / A5E00105475-12 · en · PDF · 03/2011 / A5E00105475-12Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7314-1AG14-0AB0 · Checked: 2026-10-17Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.