SIPLUS S7-300 CPU 315-2DP based on 6ES7315-2AH14-0AB0 with conformal coating, -25.+70°C, central module with MPI integrated power supply DC 24V RAM 256 KByte 2nd interface DP master/slave Micro Memory Card required The SIPLUS extreme variant also protects the automation components from harsh environmental conditions, such as particularly high and low temperatures, harmful gases, condensation, frost and biologically, chemically and mechanically active substances, such as those that can occur in control cabinets or container solutions close to production. This means that your medium and demanding automation tasks are reliably protected and offer additional investment security.