{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GK7343-1GX31-0XE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6GK7343-1GX31-0XE0","canonicalUrl":"https://aoctrl.com/siemens/6GK7343-1GX31-0XE0","factsUrl":"https://aoctrl.com/api/mcp/products/6GK7343-1GX31-0XE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens CP 343-1 Advanced, PROFINET controller/device, 2-port switch, stateful inspection firewall, NTP, DCP, for S7-300 rail.","salesMarkdown":"## PROFINET IRT and security on the S7-300 rail The Siemens 6GK7343-1GX31-0XE0 is a CP 343-1 Advanced communication processor that snaps onto the S7-300 DIN rail. It brings a managed two-port switch, PROFINET IO controller and device capability, and — the headline feature — support for PROFINET IRT (isochronous real-time), which means it can close the control loop over the network for motion axes or high-speed process sequences without a separate fieldbus. The integrated stateful inspection firewall and IP-based ACLs let you segment the automation network from the IT network at the module level, not at a perimeter gateway. NTP client keeps the CPU clock synchronised across the plant, and DCP enables device discovery and basic configuration without STEP 7 — useful for commissioning a replacement module without the engineering station. ## Memory, interfaces, and configuration The module carries 30 Mibyte of RAM for communication buffers and an additional 28 Mibyte flash file system for web pages or firmware updates. The first Ethernet interface runs at 10/100/1000 Mbit/s; the second is 10/100 Mbit/s. A C-PLUG stores the configuration so a failed module can be swapped without re-downloading the project. Configuration requires STEP 7 V5.5 SP2 HF1 or higher, or STEP 7 Professional V12 (TIA Portal) or higher. For PROFINET CBA (component-based automation), SIMATIC iMap V3.0 SP4 and higher is needed. The module draws 14.7 W from the 24 V supply via the 2-pole pluggable terminal block.","metaTitle":"Siemens 6GK7343-1GX31-0XE0 CP 343-1 Advanced, PROFINET IRT","metaDescription":"Siemens CP 343-1 Advanced communication processor for S7-300. Supports PROFINET IRT, stateful inspection firewall, NTP, DCP. Active production. Quoted to order.","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":"80 mm","C-PLUG":"Yes","Height":"125 mm","TCP/IP":"Yes","as RAM":"30 Mibyte","Maximum":"16","SNMP v1":"Yes","SNMP v3":"Yes","Required":"STEP7 V5.5 SP2 HF1 or higher / STEP 7 Professional V12 (TIA Portal) or higher","Module Format":"Compact module","ACL - IP-based":"Yes","During Storage":"-40 ... +70 °C","Switch-Managed":"No","power loss [W]":"14.7 W","Ring Redundancy":"Yes","lifecycle_stage":"current","During Transport":"-40 ... +70 °C","Firewall Version":"stateful inspection","For Power Supply":"2-pole plugable terminal block","Redundancy Manager":"Yes","protection class IP":"IP20","At The 1st Interface":"10 ... 1000 Mbit/s","At The 2nd 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","As Email Client / Maximum":"1","Supply Voltage / External":"24 V","configuration with STEP 7":"Yes","As Flash Memory File System":"28 Mibyte","for PROFINET CBA / required":"SIMATIC iMap V3.0 SP4 and higher","number of Multicast stations":"16","with IRT / PROFINET IO switch":"Yes","ACL - IP-based for PLC/routing":"Yes","product function / MIB support":"Yes","Log File For Unauthorized Access":"No","I&M0 - device-specific information":"Yes","product function / SICLOCK support":"Yes","Switch-Off Of Non-Required Services":"Yes","as client / by means of FTP / maximum":"10","as server / by means of FTP / maximum":"2","product function / PROFINET IO device":"Yes","as server / by means of HTTP / maximum":"4","product function / with VPN connection":"IPSec","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":"Yes","product function / PROFINET IO controller":"Yes","Blocking Of Communication Via Physical Ports":"Yes","For Vertical Installation / During Operation":"0 ... 40 °C","from backplane bus / at DC / at 5 V / typical":"0.14 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 %","Data Volume / As User Data For Email / Maximum":"8 Kibyte","Product Function / Pass On Time Synchronization":"Yes","supply voltage / external / at DC / rated value":"24 V","type of hashing algorithms / with VPN connection":"MD5, SHA-1","number of connections / with PROFINET CBA / total":"1000","type of encryption algorithms / with VPN connection":"AES-256, AES-192, AES-128, 3DES-168, DES-56","For Horizontally Arranged Busbars / During Operation":"0 ... 60 °C","I&M1 - higher level designation/location designation":"Yes","number of possible connections / with VPN connection":"32","type of authentication procedure / with VPN connection":"Preshared key (PSK), X.509v3 certificates","Number Of Active Connections / With Multi-Protocol Mode":"48","at the 1st interface / according to Industrial Ethernet":"RJ45 port","at the 2nd interface / according to Industrial Ethernet":"RJ45 port","number of interfaces / according to Industrial Ethernet":"3","number of remote connection partners / with PROFINET CBA":"64","As User Data For The Consistency Area For Each Sub-Module":"240 byte","Number Of Possible Write Cycles / Of The Flash Memory Cells":"100000","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":"$1,308.10 – $3,445.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3b63e0739e51ac7b721d30af2f1476f7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=24886&mlfb=6GK7343-1GX31-0XE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6GK7343-1GX31-0XE0/alternatives.json"},"ai":{"faq":[{"question":"Does 6GK7343-1GX31-0XE0 support PROFINET IRT?","answer":"Yes, the CP 343-1 Advanced supports PROFINET IRT (isochronous real-time) with the PROFINET IO switch. This enables deterministic communication for motion control and high-speed process applications over the same Ethernet cable."},{"question":"Where can I buy 6GK7343-1GX31-0XE0 and get a price?","answer":"No stock-holding claim is made here."},{"question":"What is the difference between CP 343-1 Advanced and CP 343-1 Standard?","answer":"The CP 343-1 Advanced adds a stateful inspection firewall, IP-based ACLs, NTP client, and a second Ethernet interface that the Standard variant lacks. It also supports PROFINET IRT, which the Standard does not. For a basic PROFINET connection without security or IRT, the Standard suffices; for segmented networks or motion, the Advanced is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GK7343-1GX31-0XE0","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/6GK7343-1GX31-0XE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}