Siemens CP 443-5 Communications processor

The CP 1242-7 GPRS V2 communications processor is used to connect a SIMATIC S7-1200 to the globally available GSM/GPRS mobile radio network. Worldwide wireless exchange of data between S7-1200 controllers and/or between S7-1200 controllers and control centers with an Internet connection. Communication based on the GPRS (General Packet Radio Service) mobile wireless service with data transmission speeds of up to 86 kbps in the downlink and 43 kbps in the uplink. GPRS mode with fixed IP addresses and dynamic IP addresses with standard mobile phone contract. The CP 1242-7 V2 is a new product version of the CP 1242-7. The concept for process data transmission has been expanded with a simple data point configuration, which enables substantially easier commissioning without high programming overhead and minimizes susceptibility to errors during the projects implementation phase. CP 1242-7 has also been equipped with new functions, such as access to the internal web server of the S7-1200. This opens up numerous new application areas.

Fully automatic time stamp to enable subsequent and correct archiving of process data in the control system, all data frames are assigned with a time stamp at their place of origin. Fast and flexible data communication operators are therefore quickly provided with alarms, statuses and values from the process, and they can influence process control by entering commands or setpoints at any time. Simple and low-cost engineering the cyclic or event-controller transfer of measurements, setpoints or alarms can be implemented in only a few operations and without programming effort. Remote diagnostics saves traveling and maintenance costs due to cost-effective remote programming, diagnostics, control and monitoring via the Internet.

Using CP1242-7 GPRS V2 enables the S7-1200 to be used as a remote terminal unit (substation) in telecontrol applications. Typical application examples are the collection of measured values in outdoor areas over widely distributed geographical areas (level measurement for water tanks in the water/waste water industry) or centralized opening and closing of valves (oil/gas transport in pipelines).