6GK7243-8RX30-0XE0

**6GK7243-8RX30-0XE0** 

**Data sheet** 

|**product type designation**|**CP 1243-8 IRC**|
|---|---|
||Communications processor CP 1243-8 IRC for operating a SIMATIC S7-1200 in|
||the TeleControl system Professional; for SINAUT ST7; DNP3; IEC 60870-5, station|
||type: RTU; WAN connections;1) Ethernet 2) Additionally expandable with TS|
||module RS-232 or TS module modem or TS module GSM or TS module ISDN;|
||Operation with TIM modules possible.|



|**product type designation**|**CP 1243-8 IRC**|
|---|---|
||Communications processor CP 1243-8 IRC for operating a SIMATIC S7-1200 in<br>the TeleControl system Professional; for SINAUT ST7; DNP3; IEC 60870-5, station<br>type: RTU; WAN connections;1) Ethernet 2) Additionally expandable with TS<br>module RS-232 or TS module modem or TS module GSM or TS module ISDN;<br>Operation with TIM modules possible.|
|product brand name<br>~~Oo~~|SIMATIC NET<br>~~Oo~~|
|Technical Product Detail Page<br>~~Oo~~|https://i.siemens.com/1P6GK7243-8RX30-0XE0<br>~~Oo~~|
|**transfer rate**||
|transfer rate||
|● at the 1st interface|10 ... 100 Mbit/s|
|● at the 2nd interface|0.3 ... 115.2 kbit/s|
|**interfaces**<br>~~|~~||
|number of interfaces / accordingto Industrial Ethernet<br>~~|~~|1<br>~~|~~|
|number of electrical connections||
|● at the 1st interface / accordingto Industrial Ethernet|1|
|● forpower supply|1|
|type of electrical connection||
|● at the 1st interface / accordingto Industrial Ethernet|RJ45port|
|type of electrical connection||
|● at interface 2 / for external data transmission|Interface to the TS Module|
|● for power supply|3-pole terminal block|
|**supply voltage, current consumption, power loss**<br>~~ee~~||
|type of voltage / of the supplyvoltage<br>~~ee~~|DC<br>~~ee~~|
|supplyvoltage / 1 / from backplane bus|5 V|
|supplyvoltage / external|24 V|
|supplyvoltage / external|19.2 ... 28.8 V|
|supplyvoltage / external / at DC / rated value|24 V|
|supplyvoltage / external / at DC / rated value|19.2 ... 28.8 V|
|consumed current||
|● from backplane bus / at DC / at 5 V / typical|0.25 A|
|● from external supplyvoltage / at DC / at 24 V / typical|0.1 A|
|power loss [W]|2.4 W; 1.25 W from S7-1200 backplane without TS module. 2.4 W from 24 V<br>DC external with TS module|
|**ambient conditions**<br>~~ee~~||
|ambient temperature<br>~~ee~~|~~ee~~|
|● for vertical installation / duringoperation|-20 ... +60 °C|
|● for horizontallyarranged busbars / duringoperation|-20 ... +70 °C|
|● duringstorage|-40 ... -70 °C|
|● duringtransport|-40 ... +70 °C|
|relative humidity||
|● at 25 °C / without condensation / during operation /<br>maximum|95 %|
|protection class IP|IP20|



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|**design, dimensions and weights**|**design, dimensions and weights**|
|---|---|
|module format|Compact module S7-1200 single width|
|width|30 mm|
|height|110 mm|
|depth|75 mm|
|net weight|0.122 kg|
|fasteningmethod||
|● 35 mm DIN-rail mounting|Yes|
|● S7-300 rail mounting|No|
|● wall mounting|Yes|
|**product features, product functions, product components / general**||
|number of units||
|●per CPU / maximum|1|
|● note|One CP pluggable on left side of CPU, one TS Module pluggable left side of<br>CP.|
|**product functions / cloud connectivity**||
|protocol / is supported||
|● Message QueuingTelemetryTransport(MQTT)|Yes|
|● Advanced Message QueuingProtocol(AMQP)|No|
|product function / for cloud connectivity||
|● trigger management|Yes|
|● time stamping|Yes|
|product feature / for cloud connectivity / buffered message<br>frame memory|No|
|number of active connections / for cloud connectivity|1|
|number of data points per device / maximum|500|
|**performance data / open communication**||
|number ofpossible connections / for open communication||
|● bymeans of T blocks / maximum|like CPU|
|**performance data / S7 communication**||
|number ofpossible connections / for S7 communication||
|● maximum|Configured S7-Connection for ST7-Communication|
|● with PG connections / maximum|2|
|● with OP connections / maximum|1|
|service||
|● SINAUT ST7 via S7 communication|Yes|
|**performance data / IT functions**||
|number ofpossible connections||
|● as email client / maximum|1|
|**performance data / telecontrol**||
|suitabilityfor use||
|● node station|No|
|● substation|Yes|
|● TIM control center|No|
|● note|Ethernet and TS Module can be operated inparallel|
|control center connection|control center with ST7 function|
|● bymeans of apermanent connection|supported|
|protocol / is supported||
|● DNP3|Yes|
|● IEC 60870-5|Yes|
|● SINAUT ST7protocol|Yes|
|product function / data bufferingif connection is aborted|Yes; DNP3, IEC60870-5: 64000 events, SINAUT ST7: 16000 telegrams|
|number of datapointsper device / maximum|500|
|transmission format||
|● for SINAUT ST7protocol with multi-masterpolling/ 10-bit|Yes|
|● for SINAUT ST7 protocol with polling or spontaneous /<br>10-bit or 11-bit|Yes|
|operatingmode for scanningof data transmission||
|● with dedicated line/radio link / with SINAUT ST7 protocol|Polling|



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|● with dial-upnetwork / with SINAUT ST7protocol|spontaneous|
|---|---|
|hammingdistance||
|● for SINAUT ST7 protocol|4|
|**performance data / teleservice**||
|diagnostics function / online diagnostics with SIMATIC STEP 7|Yes|
|product function||
|●program download with SIMATIC STEP 7|Yes|
|● remote firmware update|Yes|
|**product functions / management, configuration, engineering**||
|protocol / is supported||
|● SNMP v3|Yes|
|● DCP|Yes|
|configuration software||
|● required|SINAUT ES V5.5 and STEP7 V13 SP1 or higher|
|● for PG configuring / required / SINAUT ST7 configuration<br>software for PG|Yes|
|product function / is supported / identification link|Yes; acc. to IEC 61406-1:2022|
|**product functions / diagnostics**||
|product function / web-based diagnostics|Yes|
|**product functions / security**||
|firewall version|stateful inspection|
|operatingmode / Virtual Private Network(VPN)|Yes|
|product function / with VPN connection|IPsec, SINEMA RC|
|type of encryption algorithms / with VPN connection|AES-256, AES-192, AES-128, 3DES-168, DES-56|
|type of authenticationprocedure / with VPN connection|Preshared key (PSK), X.509v3 certificates|
|type of hashingalgorithms / with VPN connection|MD5, SHA-1|
|number ofpossible connections / with VPN connection|8|
|product function||
|●passwordprotection for teleservice access|No|
|● encrypted data transmission|Yes|
|● MSC client via GPRS modem with MSC capability|Yes|
|protocol||
|● is supported / MSCprotocol|Yes|
|● with Virtual Private Network MSC / is supported|TCP/IP|
|keylength / for MSC / with Virtual Private Network|128 bit|
|number ofpossible connections||
|● as MSC client / with VPN connection|1|
|● as MSC server / with VPN connection|0|
|**product functions / time**||
|protocol / is supported||
|● NTP|Yes|
|time synchronization||
|● from NTP-server|Yes|
|● from control center|Yes|
|**standards, specifications, approvals**||
|certificate of suitability/ CE marking|Yes|
|certificate of suitability/ UKCA marking|Yes|
|certificate of suitability/ RegulatoryCompliance Mark(RCM)|Yes|
|certificate of suitability/ RoHS conformity|Yes|
|certificate of suitability/ EAC approval|Yes|
|**standards, specifications, approvals / hazardous environments / header**||
|certificate of suitability/ ATEX|Yes|
|certificate of suitability/ IECEx|Yes|
|certificate of suitability / CCC / for hazardous zone according to<br>GB standard|Yes|
|**standards, specifications, approvals / Environmental Product Declaration**||
|Environmental Product Declaration|Yes|
|global warming potential[CO2 eq]||
|● total|89.58 kg|



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|● duringmanufacturing|14.29 kg|
|---|---|
|● duringoperation|75.11 kg|
|● after end of life|0.18 kg|
|**further information / internet links**<br>~~a~~||
|internet link<br>~~a~~|~~a~~|
|● to website: Selectionguide for cables and connectors|https://support.industry.siemens.com/cs/ww/en/view/109766358|
|● to webpage: selection aid TIA Selection Tool|https://www.siemens.com/tstcloud|
|● to website: Industrial communication|https://www.siemens.com/simatic-net|
|● to webpage: SiePortal|https://sieportal.siemens.com/|
|● to website: Image database|https://www.automation.siemens.com/bilddb|
|● to website: CAx-Download-Manager|https://siemens.com/cax|
|● to website: IndustryOnline Support|https://support.industry.siemens.com|
|**security information**<br>~~a~~||
|security information<br>~~a~~|Siemens provides products and solutions with industrial cybersecurity functions<br>that support the secure operation of plants, systems, machines and networks.<br>In order to protect plants, systems, machines and networks against cyber<br>threats, it is necessary to implement - and continuously maintain - a holistic,<br>state-of-the-art industrial cybersecurity concept. Siemens’ products and<br>solutions constitute one element of such a concept. Customers are responsible<br>for preventing unauthorized access to their plants, systems, machines and<br>networks. Such systems, machines and components should only be connected<br>to an enterprise network or the internet if and to the extent such a connection is<br>necessary and only when appropriate security measures (e.g. firewalls and/or<br>network segmentation) are in place. For additional information on industrial<br>cybersecurity measures that may be implemented, please visit<br>www.siemens.com/cybersecurity-industry. Siemens’ products and solutions<br>undergo continuous development to make them more secure. Siemens strongly<br>recommends that product updates are applied as soon as they are available<br>and that the latest product versions are used. Use of product versions that are<br>no longer supported, and failure to apply the latest updates may increase<br>customer’s exposure to cyber threats. To stay informed about product updates,<br>subscribe to the Siemens Industrial Cybersecurity RSS Feed under<br>https://www.siemens.com/cert.(V4.7)<br>~~a~~|
|**Approvals / Certificates**<br>~~a~~||
|**General Product Approval**<br>~~a~~||



**last modified:** 

3/10/2026 

6GK72438RX300XE0 Page 4/4 

Subject to change without notice © Copyright Siemens 

5/27/2026