{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GK7343-1CX10-0XE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6GK7343-1CX10-0XE0","canonicalUrl":"https://aoctrl.com/siemens/6GK7343-1CX10-0XE0","factsUrl":"https://aoctrl.com/api/mcp/products/6GK7343-1CX10-0XE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6GK7343-1CX10-0XE0, Simatic S7-300 compact PROFINET communication processor, single-width module, 24 V supply, integrated managed switch, IP20.","salesMarkdown":"## What this card actually is The Siemens 6GK7343-1CX10-0XE0 is a Simatic S7-300 compact communications processor — single-width module format that snaps onto the S7-300 rail and draws its 5 V logic from the backplane bus while taking 24 V externally for the field-side electronics. On the network side it carries an integrated managed switch with four Industrial Ethernet ports presented as RJ45 jacks, running the first interface at 10/100 Mbit/s. It is a PROFINET IO device with ring-redundancy support, but without the IRT switch fabric you would need for isochronous motion. The card is configured with STEP 7 — either V5.4 or higher on the classic line, or STEP 7 Professional V11 (TIA Portal) or higher. It carries DCP, NTP, LLDP and TCP/IP services on board, plus SNMP v1 for diagnostics. Mechanical envelope is 40 mm wide by 125 mm tall by 120 mm deep, which fits the S7-300 single-width footprint and consumes one slot on the rail. The headline is PROFINET IO device operation with a managed four-port switch — sized to act as a ring node on a PROFINET ring, not as a ring manager: that role has to live elsewhere on the segment. Power budget is 5.8 W typical dissipation off a 5 V backplane feed plus a 24 V external supply landed on a 2-pole pluggable terminal block. Plan the cabinet supply headroom accordingly — at 24 V the draw is modest, but the 5 V backplane budget is the tighter constraint on a loaded S7-300 rack. Security posture: IP-based ACLs are supported, but ACL-based filtering for PLC/routing scenarios is not. Services can be selectively switched off, the device supports I&M0 identification and MIB support, and SICLOCK time sync is on the menu — NTP is listed for plant-time alignment. Eight multicast stations can be registered and the module can act as a SIMATIC communication server. The card sits at IP20 — it is a panel-mount part, not a field enclosure. Storage and transport envelope runs −40 to +70 °C; handling that limit is what the wide span governs. Operating derating follows the usual S7-300 curve once the module is in service. ## Integrator notes — what to watch when you wire it in Configuration gate: the engineering workstation has to be on STEP 7 V5.4 or higher, or TIA Portal V11 (Professional) or higher. Older STEP 7 projects below V5.4 will not configure the module. The four RJ45 ports are a managed switch — segment them deliberately rather than daisy-chaining everything to one port. Multicast registration is capped at 8 stations, which is the practical ceiling on PROFINET multicast devices hanging off this CP. External 24 V lands on a 2-pole pluggable terminal block; keep the supply segregated from any noisy drive feeds and respect the IP20 cabinet rating during panel build.","metaTitle":"Siemens 6GK7343-1CX10-0XE0 PROFINET CP, S7-300","metaDescription":"Siemens 6GK7343-1CX10-0XE0 — current-production PROFINET CP for S7-300, managed 4-port switch, 24 V supply, IP20. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Communication Modules"],"specifications":{"DCP":"Yes","NTP":"Yes","LLDP":"Yes","Depth":"120 mm","Width":"40 mm","title":"6GK7343-1CX10-0XE0","Height":"125 mm","TCP/IP":"Yes","Maximum":"4","SNMP v1":"Yes","Required":"STEP 7 V5.4 or higher / STEP 7 Professional V11 (TIA Portal) or higher","description":"Communications processor CP 343-1 Lean for connection of SIMATIC S7-300 to Industrial Ethernet via TCP/IP and UDP, Multicast, SEND/RECEIVE with and without RFC1006, Fetch/ Write, S7 communication (server), PROFINET IO device integrated 2-port switch ERTEC 200, Module replacement without PG, SNMP diagnostics, initialization via LAN, 2x RJ45 connection for LAN with 10/100 Mbit/s","Module Format":"Compact module S7-300 single width","ACL - IP-based":"Yes","During Storage":"-40 ... +70 °C","Supply Voltage":"24 V","Switch-Managed":"No","power loss [W]":"5.8 W","Ring Redundancy":"Yes","lifecycle_stage":"current","During Transport":"-40 ... +70 °C","For Power Supply":"2-pole plugable terminal block","Redundancy Manager":"No","protection class IP":"IP20","At The 1st Interface":"10 ... 100 Mbit/s","S7-300 rail mounting":"Yes","Security Information":"Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens’ products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates. For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action(e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be considered. For more information about industrial security, visit http://www.siemens.com/industrialsecurity. To stay informed about product updates as they occur, sign up for a product-specific newsletter. For more information, visit http://support.automation.siemens.com. (V3.4)","Product Feature / Switch":"Yes","Supply Voltage / External":"24 V","configuration with STEP 7":"Yes","number of Multicast stations":"8","with IRT / PROFINET IO switch":"No","ACL - IP-based for PLC/routing":"No","product function / MIB support":"Yes","Log File For Unauthorized Access":"No","of Industrial Ethernet interface":"RJ45 port","I&M0 - device-specific information":"Yes","product function / SICLOCK support":"Yes","Switch-Off Of Non-Required Services":"Yes","of SIMATIC communication / as server":"Yes","product function / PROFINET IO device":"Yes","Supply Voltage / 1 / From Backplane Bus":"5 V","Type Of Voltage / Of The Supply Voltage":"DC","Product Function / Web-Based Diagnostics":"Yes","password protection for Web applications":"No","product function / PROFINET IO controller":"No","Blocking Of Communication Via Physical Ports":"Yes","For Vertical Installation / During Operation":"0 ... 40 °C","from backplane bus / at DC / at 5 V / typical":"0.2 A","number of submodules / per PROFINET IO-Device":"32","relative negative tolerance / at DC / at 24 V":"15 %","relative positive tolerance / at DC / at 24 V":"20 %","Product Function / Pass On Time Synchronization":"Yes","supply voltage / external / at DC / rated value":"24 V","For Horizontally Arranged Busbars / During Operation":"0 ... 60 °C","I&M1 - higher level designation/location designation":"Yes","Number Of Active Connections / With Multi-Protocol Mode":"12","at the 1st interface / according to Industrial Ethernet":"RJ45 port","number of interfaces / according to Industrial Ethernet":"2","As User Data For The Consistency Area For Each Sub-Module":"240 byte","as user data for input variables / for each sub-module as PROFINET IO device":"240 byte","as user data for output variables / for each sub-module as PROFINET IO device":"240 byte"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$555.55 – $789.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/39f0c41ca2d4da47da66fd6355adfc48.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=23140&mlfb=6GK7343-1CX10-0XE0"},"ai":{"faq":[{"question":"What are the headline ratings for this PROFINET CP?","answer":"It is an S7-300 compact communications processor with a four-port managed switch, 10/100 Mbit/s on the first interface, PROFINET IO device operation with ring redundancy, 24 V external supply and 5.8 W typical dissipation, in a 40 × 125 × 120 mm IP20 housing."},{"question":"Does this module support DCP and NTP?","answer":"Yes — DCP and NTP are both listed, along with LLDP, TCP/IP and SNMP v1 on the network-services side."},{"question":"What engineering software is required to configure it?","answer":"STEP 7 V5.4 or higher, or STEP 7 Professional V11 (TIA Portal) or higher. Older STEP 7 releases will not bring the module online in the hardware catalog."},{"question":"Can this CP act as a ring manager?","answer":"No — it supports ring redundancy but is not a redundancy manager. Place the manager role on a different node on the segment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GK7343-1CX10-0XE0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6GK7343-1CX10-0XE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}