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Siemens 6GK7343-1GX21-0XE0 SIMATIC NET CP 343-1 Advanced

Siemens 6GK7343-1GX21-0XE0 SIMATIC NET CP 343-1 Advanced

Product Name: SIMATIC NET CP 343-1 Advanced Ethernet Processor

Brand Name: Siemens

Model Number: 6GK7343-1GX21-0XE0

Place of Origin: Germany

Warranty: 12 Months

Whatsapp: +86 18020776782

Email: [email protected]

Appurtenance:

siemens 6gk7343 1gx21 0xe0 simatic net cp 343 1 advanced-1

Overview
Description
S7-300 Integration
C-PLUG Recovery
Specifications
Commercial Term
Contact info
FAQ
Other Products
Recommended Products

Double-width S7-300 Ethernet processor for PROFINET IO, CBA, S7, open and legacy communication services

Project and C-PLUG check: Confirm STEP 7 V5.3 SP2 or higher, the rack and slot, external 24 V supply, stored project location, C-PLUG condition, IP access protection, PROFINET device list and every legacy connection before exchange.

The CP 343-1 Advanced connects S7-300 or C7-300 systems to 10/100 Mbit/s Industrial Ethernet. It supports PROFINET IO controller operation, PROFINET CBA, S7 communication, ISO, ISO-on-TCP, TCP, UDP, multicast, FTP, email and web functions.

Description

6GK7343-1GX21-0XE0 is the GX21 generation of the CP 343-1 Advanced. It installs in permitted S7-300 rack slots and uses a removable C-PLUG to retain device configuration and project data for controlled module replacement.

The module can carry several communication types at the same time. Troubleshooting should therefore separate the physical Ethernet path, PROFINET IO operation, S7 or open connections, IT functions and IP access protection instead of treating all failures as one network fault.

S7-300 Integration

Restore the rack project, Ethernet identity and each communication service as separate commissioning checkpoints.

Rack and power

Verify the permitted slot, backplane connector, external 24 V supply and protective earth before network tests.

PROFINET scope

Preserve IO device names, addresses, update behavior and controller configuration, especially for large device counts.

Legacy services

List ISO, ISO-on-TCP, TCP, UDP, S7, FETCH/WRITE, FTP and email partners with their application blocks.

C-PLUG Recovery

The C-PLUG can simplify replacement only when its data, device type and project history are known and valid.

Original C-PLUG

Label its orientation and preserve it with the original CP until configuration recovery has been verified.

Replacement case

If a new C-PLUG is used, reload the required STEP 7 and PROFINET CBA interconnection data.

Fault evidence

Read LED states, NCM diagnostics and the IP access log before formatting a C-PLUG or resetting the module.

Specifications

Product type designation

SIMATIC NET CP 343-1 Advanced

Order number

6GK7343-1GX21-0XE0

PLC platform

SIMATIC S7-300 / C7-300

Ethernet interface

One RJ45, 10/100 Mbit/s

PROFINET role

IO controller and CBA communication

Engineering

STEP 7 V5.3 SP2 with NCM S7 or higher

Configuration memory

C-PLUG with 28 MB flash file system

Power supply

24 V DC +/-5% plus backplane supply

Power loss

Approx. 5.8 W

Operating temperature

0 to 60 degrees C

Dimensions

80 x 125 x 120 mm

Weight

Approx. 600 g

Commercial Term

Quotation

Current price and availability

Payment

T/T or agreed terms

Lead time

Confirmed with quotation

Shipping

DHL, FedEx, UPS or agreed freight

Warranty

12 months

Contact info

CONTACT

Jim Pei

[email protected]

+86 180 2077 6782

FAQ

How can I confirm that 6GK7343-1GX21-0XE0 fits my S7-300 rack and project?

Verify the CPU, rack number, permitted slot, external 24 V supply, STEP 7 V5.3 SP2 or higher and the GX21 hardware entry. List the required PROFINET IO, CBA, S7, open and IT services before ordering.

What should I preserve before replacing 6GK7343-1GX21-0XE0?

Archive the STEP 7 and NCM project, IP settings, MAC identity, connection tables, PROFINET device list, CBA interconnections, web or FTP files, access rules and diagnostics. Photograph the C-PLUG and every cable before removal.

Can the original C-PLUG be moved directly into replacement 6GK7343-1GX21-0XE0?

It can retain configuration when it is valid for the same device type, but power must be off and the C-PLUG must not be removed while the module is energized. Verify the restored project and CBA data before production release.

Why can PROFINET devices start slowly after 6GK7343-1GX21-0XE0 is commissioned?

A large configuration can take several minutes to distribute project data. Check the device count, CPU resources, startup watchdog and first failing device instead of repeatedly cycling power during the expected startup interval.

Why can 6GK7343-1GX21-0XE0 pass basic network traffic while FTP or a programmed connection fails?

Treat each service separately. Verify the configured connection, application block, file-system path, user permissions and IP access protection, then review NCM diagnostics and the security log for a blocked request.

How should I handle an interrupted firmware load on 6GK7343-1GX21-0XE0?

Use the Siemens firmware loader over ISO Industrial Ethernet. If the retry cannot start, power down, set the selector to STOP, power up and begin the load during the approximately ten-second ready window using the factory MAC address.

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