Siemens 6GK7243-8RX30-0XE0 SIMATIC S7-1200 CP 1243-8 IRC Telecontrol PLC Communication Module

The Siemens CP 1243-8 IRC (6GK7243-8RX30-0XE0) is a communications processor that connects a SIMATIC S7-1200 to the TeleControl system Professional and SINAUT ST7, supporting DNP3 and IEC 60870-5 RTU protocols over a 10/100 Mbit/s Ethernet interface. It expands with a TS module for RS-232, modem, GSM, or ISDN connections, and includes an IPsec VPN with AES-256 encryption plus MSC client support over GPRS.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• RCM
• RoHS
• EAC
• ATEX
• IECEx
• CCC-Ex
• EPD

Selection Notes

The IRC designation reflects its role as an integrated RTU communication processor for SINAUT ST7 and DNP3/IEC 60870-5 telecontrol - Ethernet and the TS module interface can run in parallel, so the same CP handles a primary Ethernet path to a control center plus a backup dial-up or radio path via modem, GSM, or ISDN module. Choose it over the LTE-only cellular variant when the site needs a wired Ethernet primary path with a serial or modem backup instead of cellular-only connectivity.

Applications

Fits SIMATIC S7-1200 substations and remote stations reporting to a TeleControl Server or SINAUT ST7 control center, where a wired Ethernet link needs a serial or dial-up backup path for redundancy.