SIMATIC NET CP 343-2 AS-Interface Communication Processor
The Siemens 6GK7343-2AH00-0XA0 is a SIMATIC NET CP 343-2 AS-Interface master communication processor. Siemens documentation identifies the exact order number for connecting S7-300 or compatible ET 200M PN/DP automation configurations to AS-Interface devices.
| Official lifecycle wording | Current official lifecycle wording not confirmed |
| Procurement note | Confirm current availability, exact article number, firmware or project requirements and supplied accessories before ordering. |
| Manufacturer | Siemens |
| Complete article number | 6GK7343-2AH00-0XA0 |
| Product designation | CP 343-2 |
| Product type | AS-Interface master communication processor |
| Automation platform | SIMATIC S7-300 / ET 200M |
| Field network | AS-Interface |
| PCS 7 library support | CP 343-2 with ET 200M PN/DP |
| Standard or A-address slave data | Accessible through the cyclic process image |
| B-address slave data | Transferred through data records |
| Configuration method | Hardware configuration and supported CP 343-2 procedures |



Connects AS-Interface sensors and actuators to S7-300 or compatible ET 200M automation stations.
Supports CP 343-2 integration behind ET 200M PN/DP in documented PCS 7 configurations.
Supports exact-order-code replacement planning for installed AS-Interface master modules.
Verify the complete 6GK7343-2AH00-0XA0 MLFB, S7-300 or ET 200M station, CPU or interface module, AS-i power supply, slave addressing, process-image allocation, STEP 7 configuration and PCS 7 library requirements.
Request nameplate, connector or terminal-area and installed-system photographs. Confirm quantity, condition, accessories, documentation, inspection requirements, warranty terms and destination.
Siemens official documentation confirms the exact 6GK7343-2AH00-0XA0 CP 343-2 identity and supported AS-Interface integration. A current Siemens lifecycle label for this complete legacy article number was not confirmed, so no status is inferred from the later -2AH01 revision.
It is a Siemens SIMATIC NET CP 343-2 AS-Interface master communication processor.
It connects the automation station to AS-Interface devices.
Siemens documentation identifies CP 343-2 use with S7-300 and ET 200M PN/DP configurations.
The documented CP 343-2 behavior uses the cyclic process image.
Siemens documentation states that B-address slave data are transferred through data records.
Current official Siemens lifecycle wording for the complete 6GK7343-2AH00-0XA0 article number was not confirmed.
Send the full order code, quantity, destination, S7-300 or ET 200M station and AS-i slave configuration for availability and compatibility review.
Technical identification, S7-300 and AS-Interface compatibility review, sourcing coordination, inspection planning and global delivery support for field-network projects.



We compare the complete 6GK7343-2AH00-0XA0 article number, CP 343-2 designation, S7-300 or ET 200M station, AS-i power supply, slave addressing and available hardware configuration.
This helps prevent confusion with CP 343-2 P or later hardware revisions. CPU or interface module, process-image allocation, B-address handling and STEP 7 or PCS 7 requirements are reviewed when available.
Before dispatch, the agreed evidence can cover the nameplate, enclosure, plug-in area, contacts, LED label area and included accessories. Visible damage, contamination, storage condition and packaging needs can be added to the inspection scope.
The commercial review also aligns requested condition, quantity, lead time, warranty terms, supporting documents and destination-specific shipment requirements.
The full order code, system role and application requirements are reviewed as one configuration rather than as isolated keywords.
Procurement, engineering and maintenance teams receive a shared checklist covering hardware, project and commercial evidence.
Packing, documentation, transport preference and delivery destination are aligned early to support the maintenance schedule.
| Stage | Order support |
| 1. Inquiry | Send 6GK7343-2AH00-0XA0, quantity, destination and available installed-system or nameplate evidence. |
| 2. Compatibility review | We compare S7-300 or ET 200M station, CPU or interface module, AS-i power supply, slave addressing, process image and STEP 7 or PCS 7 requirements. |
| 3. Commercial alignment | Availability, condition, lead time, inspection evidence, warranty and delivery expectations are confirmed. |
| 4. Packing and dispatch | Protective packing and shipment documentation are coordinated for the destination and selected transport method. |
Share the exact quantity, installed-system configuration, application details and destination for an availability and compatibility review.
A 70-model cross-brand reference list for automation, networking, safety, drives, instrumentation and maintenance procurement. Confirm every complete order code before purchase.
| 70 Model References | |||
| 6GK5208-0BA00-2FC2 | 330104-02-09-10-01-00 | PRO3000 | EM100 - 823-865 |
| 0243002430 4.300-2420 | E175096 | REG-K 12X230/16 | 140471-01 3500/70 |
| AB444230035 | 15B10851G1 | KJ2003X1-BA2 /12P2093X102 | R6010 |
| SD55X | BM11D | DSX-PLA004 | ABB M2301 2TMA070080W0012 |
| GT437-491 | CK721-A | PR 4501 | BMP21 |
| EB0518(A) FXYMP-M 1677287 | 5642-50 | PSM700 | 24138990 |
| 60950-50 | ACHILLES-NGFW-300-2-R3B | LM4-LC24J-2A2UN | WV-S1112 |
| F9342DT-01 | 2182-227 | 233.52.100 | 15B10840G1 / 15H50541 |
| Nrk16/A | IEM-3000-8TM | ABB DC505-FBP 1SAP220000R0001 | 1SVR450055R0000 |
| 14YB3-230/C 29317AA8 | D504 | ATM-20 | GVAG-2VK1S |
| sms1600 pn sg001043 | 407860 | OC485 | B4-24-T-5-30 |
| PRO32IN 10290-0000-F REV-C | ABB PM582 / 1SAP140200R0100 | EDB14030 | MP80 |
| 102MC-SC | 02-70325-02 | 1860114A | TSW-552-BS |
| K9149FF-05 AS KG149FA | BOB1024 | 9418/01-201-10 | ABB 61318968 NDPC-02 |
| Eurotherm 2404 | RKLB57 6180BKR000000-H1111 | KNX /644692 | AVPR100S151213 |
| SDVN-2S | LBB4540/04 F01U508294 HW04/02 WK:2017 | EFCB12T-OE1 | O5H700 |
| GTD-2000Tx | ULFIM-D37M-45-XOR | 1606-XLE240EN | WTD-868-T |
| H2O | MA2-08E | ||
Send the exact order code, quantity and destination for availability, configuration and compatibility review.