SIMATIC S7-300 CPU 313C / 6ES7313-5BG04-0AB0

Technical specifications

Controller family

SIMATIC S7-300

CPU designation

CPU 313C

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 V5.3 + SP2 with HSP 203

Minimum bit operation time

0.07 microseconds

Document pages

PDF 224; onboard I/O scope PDF290-291,293-295,297-298; interfaces/dimensions PDF230,232

Reviewed document edition

03/2011 / A5E00105475-12

Onboard digital inputs

24

Onboard digital outputs

16

Rated onboard I/O load voltage

24 V DC

Digital input isolation

From backplane; not between input channels

Digital output isolation

Between groups of8; isolated from backplane

Standard digital output rated current

0.5 A per point; standard DO selection table

DO aggregate current per group

Horizontal <=40 C: 3 A; horizontal <=60 C: 2 A; vertical <=40 C: 2 A

Fast output parallel connection

Prohibited

Onboard analog voltage/current inputs

4

Onboard analog resistance inputs

1

Onboard analog outputs

2

Onboard analog resolution

11 bits plus sign including overrange

Onboard analog isolation

From backplane; not between analog channels

Resistance measurement wiring

2-wire without line-resistance compensation;3/4-wire not supported

Onboard analog output ranges

-10..10 V;0..10 V;-20..20 mA;0..20 mA;4..20 mA

Dimensions (W x H x D)

120 x 125 x 130 mm

Approximate weight

660 g

Rated CPU supply

24 V DC

Permissible CPU supply range

19.2..28.8 V DC

Integrated interfaces

X1 MPI / RS485

Required front connectors

2 x 40-pin; requirement does not establish inclusion in delivery

Documents / datasheets

Source reviewed: 2026-10-17

Description

CPU 313C 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.