{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1343-1GX31-4XE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1343-1GX31-4XE0","canonicalUrl":"https://aoctrl.com/siemens/6AG1343-1GX31-4XE0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1343-1GX31-4XE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1343-1GX31-4XE0 CP 343-1 Advanced communications processor, compact module for S7-300, 1st interface 10...1000 Mbit/s, 2nd interface 10...100 Mbit/s, 30 Mibyte RAM, stateful inspection firewall, ring redundancy, IP20.","salesMarkdown":"## What the interface speeds mean for your PROFINET topology The 6AG1343-1GX31-4XE0: The 1st interface runs at 10...1000 Mbit/s — that gigabit uplink handles the PROFINET IO traffic plus any IT services (NTP, SNMP) on the same port without starving the cyclic I/O. The 2nd interface is 10...100 Mbit/s, typically used for a separate network segment or a service laptop, keeping diagnostic traffic off the real-time ring. Ring redundancy is built in — the CP acts as redundancy manager, so you can wire a ring topology without an external switch. The 30 Mibyte RAM and 28 Mibyte flash file system buffer firmware updates and web pages without eating into the S7-300 CPU work memory. ## Security and protocol baseline for a connected cell Stateful inspection firewall (not just a basic ACL) filters traffic per session, not per packet — useful when the CP sits on a cell network that also carries IT data. IP-based ACLs for both the switch and PLC routing are supported, so you can restrict which stations talk to the controller. DCP, NTP, LLDP, SNMP v1 and v3 are all on the table — SNMP v3 means you can monitor the CP in a managed network without sending community strings in the clear. No log file for unauthorized access, so plan on a central syslog server if that's a requirement. ## S7-300 rail mounting and software version lock Mounts directly on the S7-300 DIN rail — the 80 x 125 x 120 mm footprint fits in the standard rack slot. Power comes from a 2-pole pluggable terminal block, 24 V external supply, drawing 14.7 W. Software requirement is STEP 7 V5.5 SP2 HF1 or higher, or STEP 7 Professional V12 (TIA Portal) or higher. For PROFINET CBA configuration, SIMATIC iMap V3.0 SP4 or higher is needed. No managed switch functions — this is a CP, not a switch replacement.","metaTitle":"Siemens 6AG1343-1GX31-4XE0 CP 343-1 Advanced, 1 Gbit/s","metaDescription":"Siemens 6AG1343-1GX31-4XE0 CP 343-1 Advanced communications processor for S7-300. 1st interface 1000 Mbit/s, 2nd 100 Mbit/s.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","NTP":"Yes","LLDP":"Yes","Depth":"120 mm","Width":"80 mm","title":"6AG1343-1GX31-4XE0","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","description":"SIPLUS NET CP 343-1 Advanced based on 6GK7343-1GX31-0XE0 with conformal coating, 0…+60 °C, for connection of the SIMATIC S7-300 CPU to Ind. Ethernet; PROFINET IO controller and/or IO Device; RT and RT and IRT IRT, MRP, PROFINET CBA; TCP/IP ISO, UDP, S7 communication, S5-compatible communication, (send/receive) with fetch/write with and without RFC 1006, multicast diagnostics extension,SNMP,DHCP, FTP client/server, email, Gigabit-SS1X RJ45 (10/100/1000); PROFINET interface 2x RJ45(10/100 Mbit) PR","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","conformity according to EN 60721-3-3":"Yes; Class 3S4 incl. sand, dust. The supplied plug covers must remain in place over the unused interfaces during operation.","conformity according to EN 60721-3-6":"Yes; Class 6S3 incl. sand, dust. The supplied plug covers must remain in place over the unused interfaces during operation.","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","Chemical Resistance / To Commercially Available Cooling Lubricants":"Yes; incl. airborne diesel and oil droplets","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","Ambient Condition / Relating To Ambient Temperature - Air Pressure - Installation Altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f1af7c9b01607184d4634f627235fb2f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=503791&mlfb=6AG1343-1GX31-4XE0"},"ai":{"faq":[{"question":"What is the DCP function on this CP?","answer":"DCP (Discovery and Configuration Protocol) is supported — it allows the PROFINET controller to assign device names and IP addresses to the CP during startup, eliminating the need for a separate hardware addressing tool."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1343-1GX31-4XE0","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/6AG1343-1GX31-4XE0 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}}