A model-specific communication profile for installed S7-300 Ethernet and PROFINET architectures.
Verify the complete suffix, firmware, S7-300 CPU compatibility, network role, engineering project and readable product label.
Siemens 6GK7343-1EX21-0XE0 is the SIMATIC S7-300 CP 343-1 Standard Industrial Ethernet communication processor. Siemens documentation identifies the exact article for S7-300 communication and confirms use as a PROFINET IO and PROFINET CBA controller. Official support records also document S7 routing, firmware V1.3.3 availability and a 128-byte upper limit for consistent user data in the specified communication process. Procurement teams should verify the complete suffix, installed CPU, firmware, engineering environment, network role, addressing, connector arrangement and original project configuration before approving a maintenance replacement.
| Commercial Item | Status |
|---|---|
| Product Condition | Original new |
| Availability | In stock |
| Warranty | With 1 year warranty |
| Shipping | Worldwide shipping options available |
Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.
| Item | Officially Confirmed Data |
|---|---|
| Manufacturer | Siemens |
| Complete Part Number | 6GK7343-1EX21-0XE0 |
| Product Type | CP 343-1 Standard communication processor |
| Automation System | SIMATIC S7-300 |
| Network | Industrial Ethernet |
| Controller Roles | PROFINET IO controller and PROFINET CBA controller |
| S7 Routing | Supported from firmware V1.0 |
| Official Firmware Record | V1.3.3 for all hardware versions |
| Consistent User Data | 128-byte upper limit in the documented communication process |
| Country of Origin | GERMANY |
| Application | Fit Consideration |
|---|---|
| S7-300 Industrial Ethernet integration | Match the installed CPU, rack position, firmware and network project. |
| PROFINET IO control | Review controller role, device configuration, addressing and consistent-data requirements. |
| PROFINET CBA communication | Confirm the component-based automation project and approved engineering environment. |
| S7 routing and maintenance access | Verify the routing path, firmware, diagnostics and network security requirements. |
The reviewed Siemens support documents confirm this complete order code and its CP 343-1 Standard communication functions. Exact current Siemens PLM lifecycle wording for this complete suffix was not identified, so this page does not state Active, cancellation or discontinuation status.
It identifies the Siemens SIMATIC S7-300 CP 343-1 Standard Industrial Ethernet communication processor.
Siemens documents this CP 343-1 version for PROFINET IO and PROFINET CBA controller functions.
Yes. Siemens support documentation lists S7 routing support from firmware V1.0 for this complete order code.
No lifecycle conclusion is stated because exact current Siemens PLM wording for this complete suffix was not identified in the reviewed official records.
Verify the complete suffix, CPU compatibility, firmware, network role, engineering project, addressing, connectors and product-label evidence.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
A documented handoff from identity and compatibility review to protected shipment and transaction follow-up.
| Checkpoint | How It Is Handled |
|---|---|
| Model and suffix verification | Match 6GK7343-1EX21-0XE0 against the inquiry, module label and packaging. |
| Condition confirmation | Review housing, LEDs, connectors, contacts, markings and visible condition. |
| Technical compatibility review | Compare S7-300 CPU, firmware, network role, project data, addressing and routing requirements. |
| Product and label photo confirmation | Request readable front, side, connector, nameplate and packaging photographs. |
| Protective packaging | Protect connectors, housing and electronic assemblies against impact, moisture and contamination. |
| Worldwide shipping | Coordinate available options after destination, quantity and documentation scope are reviewed. |
| Shipment tracking | Provide tracking information after carrier acceptance. |
| Customs documentation | Prepare transaction documents for the confirmed destination and shipment. |
| Written warranty terms | Provide written terms aligned with the confirmed transaction. |
| Return authorization process | Require return authorization before goods are sent back. |
| After-sales response | Use order records, shipment data, technical evidence and photographs to coordinate follow-up. |
Check whether the supplier preserves the complete part number, requests readable label evidence, separates commercial statements from manufacturer data and supplies written transaction terms.
Risk signals include shortened order codes, parameters copied from another suffix, unsupported interchangeability claims, unclear condition statements and reluctance to provide product or packaging evidence.
Align the exact module identity, CPU and network compatibility, inspection scope, packaging, shipping documents, written warranty and return authorization process.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
| H3-5068X03 | ABE7 P16T334 | MN-S4-500-A | IOP301 | 1006-24030 00 |
| WP-BW1002-S2 | Bodine 3984 | 750-841 3x750-432 3x 750-531 750-600 | MSR142RTP 440R-G23215 | DLH1000S |
| LogBox-3G-1RB，8813006000 | W0PSA1701 | C1000 | ECY-S1000 | XLS-ABF-1B |
| 59212-00 | WR3387K-8 | GSS SDC 17/12 | BSSBLUCARDIN | OLS6 |
| VP9805 54-64111 | 38B6041X022 | BX506 | P2RK-P | S7-1500 6ES7521-1BL00-0AB0 |
| DDI 24-12 | RC-4/20 | TT5000 | UC-3312 | RP12-GSM |
| DS7708-SR00004ZCWW | 663AA002237 | ECM-14001GB | KN-1400B | 710-09853 |
| RIA141X-DA | SCS 573998 | AEG A51 6762250 DZL AE4 6762264 AE02 | MGE/MLE 160-180 | DIU 45196504 |
| LL-NMIS-204G-SFP | 42716625-V1 | PN:2320186 | MIS-PE 752-138 | C1B |
| 23-7904 | A2BN5D-221D0 | AR8442 | TR42-H-CO2 | f418 |
| 318312 | CCHE-RM06-5C-P003RH | 62703310 | UFM-D05 1C334481 | PA-32IPDA SPA-321PPADA |
| NGRX-ELVI-AU-WH | TC10 | 346851 | H117-358 | XCSTE7311 |
| VIMAR 01401 | Xt2001 MK03260-02 | 860-100-147LF 830-100-140LF | VROM-160 D59B 74158 | EN300 |
| 76714 | RLED-CR | SP-0108-H2 | XM669K-5P1C1 MGFDDIC501 | VX4A661 |
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
