{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GK7243-8RX30-0XE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6GK7243-8RX30-0XE0","canonicalUrl":"https://aoctrl.com/siemens/6GK7243-8RX30-0XE0","factsUrl":"https://aoctrl.com/api/mcp/products/6GK7243-8RX30-0XE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens CP 1243-8 IRC, 6GK7243-8RX30-0XE0, compact S7-1200 communication module, DNP3, IEC 60870-5, SINAUT ST7, NTP, DCP, IP20, 75 x 30 x 110 mm.","salesMarkdown":"## Telecontrol gateway for S7-1200 The Siemens 6GK7243-8RX30-0XE0 CP 1243-8 IRC is a compact communication module that slots directly into a SIMATIC S7-1200 system, adding telecontrol protocols for remote substation and SCADA connectivity. It supports DNP3, IEC 60870-5, and SINAUT ST7 protocols out of the box, making it the part to specify when the S7-1200 needs to talk to a control center over a WAN or serial link. The module draws 1.25 W from the S7-1200 backplane when operating without the TS module, and 2.4 W from an external 24 V DC supply when the TS module is present. That external supply connects through the included 3-pole terminal block. ## Protocols and time sync The CP 1243-8 IRC runs DNP3, IEC 60870-5, and SINAUT ST7 on the serial interface (0.3... 115.2 kbit/s) and 10/100 Mbit/s Ethernet on the RJ45 port. It also functions as an NTP client, pulling time from an NTP server, and supports DCP for device discovery and configuration on the network. Up to four SINAUT ST7 connections are supported per module, with one control center connection using the ST7 function. The module also supports encrypted data transmission and stateful inspection firewall for securing the link. The module requires SINAUT ES V5.5 and STEP7 V13 SP1 or higher for configuration. Remote firmware updates are supported, and Siemens provides industrial security guidance for integrating the module into a holistic plant security concept. The module is a compact S7-1200 single-width module (75 mm depth, 30 mm width, 110 mm height) that snaps onto the DIN rail alongside the CPU.","metaTitle":"Siemens 6GK7243-8RX30-0XE0 CP 1243-8 IRC, DNP3, IEC 60870-5","metaDescription":"Siemens 6GK7243-8RX30-0XE0 CP 1243-8 IRC communication module for S7-1200. Supports DNP3, IEC 60870-5, SINAUT ST7, NTP, DCP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Communication Modules"],"specifications":{"DCP":"Yes","NTP":"Yes","DNP3":"Yes","Note":"Ethernet and TS Module can be operated in parallel","Depth":"75 mm","Width":"30 mm","Height":"110 mm","Maximum":"Configured S7-Connection for ST7-Communication","SNMP v3":"Yes","Required":"SINAUT ES V5.5 and STEP7 V13 SP1 or higher","Substation":"Yes","IEC 60870-5":"Yes","Node Station":"No","Module Format":"Compact module S7-1200 single width","Wall Mounting":"Yes","During Storage":"-40 ... -70 °C","power loss [W]":"2.4 W; 1.25 W from S7-1200 backplane without TS module. 2.4 W from 24 V DC external with TS module","from NTP-server":"Yes","lifecycle_stage":"current","During Transport":"-40 ... +70 °C","Firewall Version":"stateful inspection","For Power Supply":"3-pole terminal block","per CPU / maximum":"1","TIM control center":"No","From Control Center":"Yes","SINAUT ST7 protocol":"Yes","protection class IP":"IP20","At The 1st Interface":"10 ... 100 Mbit/s","At The 2nd Interface":"0.3 ... 115.2 kbit/s","S7-300 rail mounting":"No","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)","Remote Firmware Update":"Yes","for SINAUT ST7 protocol":"4","As Email Client / Maximum":"1","Control Center Connection":"control center with ST7 function","Supply Voltage / External":"19.2 ... 28.8 V","Encrypted Data Transmission":"Yes","is supported / MSC protocol":"Yes","with OP connections / maximum":"1","with PG connections / maximum":"2","by means of T blocks / maximum":"like CPU","35 mm top hat DIN rail mounting":"Yes","SINAUT ST7 via S7 communication":"Yes","By Means Of A Permanent Connection":"supported","as MSC client / with VPN connection":"1","as MSC server / with VPN connection":"0","program download with SIMATIC STEP 7":"Yes","product function / with VPN connection":"IPsec, SINEMA RC","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 Teleservice Access":"No","Number Of Data Points Per Station / Maximum":"500","For Vertical Installation / During Operation":"-20 ... +60 °C","MSC client via GPRS modem with MSC capability":"Yes","from backplane bus / at DC / at 5 V / typical":"0.25 A","operating mode / Virtual Private Network (VPN)":"Yes","At Interface 2 / For External Data Transmission":"Interface to the TS Module","supply voltage / external / at DC / rated value":"19.2 ... 28.8 V","with Virtual Private Network MSC / is supported":"TCP/IP","with dial-up network / with SINAUT ST7 protocol":"spontaneous","type of hashing algorithms / with VPN connection":"MD5, SHA-1","type of encryption algorithms / with VPN connection":"AES-256, AES-192, AES-128, 3DES-168, DES-56","For Horizontally Arranged Busbars / During Operation":"-20 ... +70 °C","number of possible connections / with VPN connection":"8","type of authentication procedure / with VPN connection":"Preshared key (PSK), X.509v3 certificates","at the 1st interface / according to Industrial Ethernet":"RJ45 port","number of interfaces / according to Industrial Ethernet":"1","Product Function / Data Buffering If Connection Is Aborted":"Yes; DNP3, IEC60870-5: 64000 events, SINAUT ST7: 16000 telegrams","for SINAUT ST7 protocol with multi-master polling / 10-bit":"Yes","diagnostics function / online diagnostics with SIMATIC STEP 7":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$515.62 – $1,293.96","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b9b66ea8ca9ef472f44935353027ec62.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=520937&mlfb=6GK7243-8RX30-0XE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6GK7243-8RX30-0XE0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GK7243-8RX30-0XE0","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/6GK7243-8RX30-0XE0 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}}