Product details
Specifications
Recommand
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01 / Product Details

Siemens

SIMATIC NET · CP 343-2

6GK7343-2AH01-0XA0

CP 343-2 AS-Interface Communications Processor

An AS-Interface connection module for distributed machine I/O.

ConditionNew Original

WarrantyOne year

In stock2

Official sources

Siemens CP 343-2 Data Sheet · 25/02/2026 Siemens Industry Mall · product record

Specifications

AS-Interface network integration

Connects field devices to the automation controller through the backplane and makes their process data available to the user program.

AS-i specification

V3.0; master profile M4

AS-i interfaces

Maximum AS-i devices

Bus cycle

5 ms for 31 devices; 10 ms for 62

Front connection

20-pin S7-300 connector

Backplane current

200 mA maximum

Power loss

4 W

Protection class

IP20

Ordering code

The 2AH01 article identifies the CP 343-2 AS-i V3.0 version. Retain the complete code when selecting a replacement.

System connection

For SIMATIC S7-300 and ET 200M. Redundancy is supported in conjunction with a redundant IM 153 configuration.

Data access

Digital data use process-image or peripheral addressing.

Analog values

Analog data are accessed by data-record transfer.

Commissioning

Set pushbutton, STEP 7 or command interface configuration.

Recommand

Explore by application

Machine I/O

Distributed sensor and actuator networks.

Material handling

Conveyor and machine-station I/O connections.

Plant service

Maintenance of installed AS-i master systems.

Siemens

Building automation

PXC16.2-E.A

PXC16.2-EF.A

PXC16.2-EF32.A

PXC16.3-UCMR.A

PXC24.2-EF.A

PXC24.2-EF32.A

PXC24.2-ER.A

PXC24.2-ERF.A

PXC24.3-UCMR.A

PXC36-E.A

PXC36-EF.A

PXC16.2-P.A

PXC16.2-PE.A

PXC24.2-P.A

PXC24.2-PE.A

PXC24.2-PEF.A

PXC24.2-PEF32.A

PXA-COMP.CON

PXA-ENC18

PXA-ENC19

DOLD

Monitoring & relay technology

UG 9400

MK 7830N

UG 6970

UG 6960

UH 6900

IR 5882

RN 5883

UG 9256

UG 9256/804

UG 9410

UG 9019

PF 9015

PF 9029

UH 9018

GF 9229

PH 9270

PK 9260

PI 9260

LH 5946

UG 6946

04 / Service & Policy

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CP 343-2 AS-Interface Communications Processor

6GK7343-2AH01-0XA0 Datasheet

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