CPU for SIMATIC S7-400H and S7-400F/FHFor use in S7-400H fault-tolerant systemsCan be used with F-Runtime license as fail-safe CPU in safety related S7-400F/FH systemsWith integral PROFIBUS DP master interfaceWith 2 plug-in slots for sync modulesFor further technical documentation on SIPLUS, see:http://www.siemens.com/siplus-extreme/techdoku