Feature Value Internal cycle time  < 1 ms Maximum address volume for inputs  64 Byte Maximum address volume for outputs  64 Byte Diagnosis  Diagnostics memory Channel and module-oriented diagnostics Undervoltage modules Parameters configuring  Diagnostics behaviour Fail-safe reaction Forcing of channels Signal setup LED displays  Bus status Channel status Module status System state Operating voltage range DC  18 ... 30 V Nominal operating voltage DC  24 V Electrical connection  Fieldbus Integrated controller Max. power supply  16 A Authorisation  RCM Mark c UL us - Recognized (OL) KC mark  KC-EMV CE mark (see declaration of conformity)  to EU directive for EMC to EU directive explosion protection (ATEX) in accordance with EU RoHS directive Explosion protection certification outside the EU  EPL Gc (RU) Storage temperature  -20 ... 70 °C Protection class  IP65 IP67 ATEX category Gas  II 3G Ambient temperature  -5 ... 50 °C Explosion ignition protection type Gas  Ex nA IIC T4 X Gc Explosion-proof ambient temperature  -5°C <= Ta <= +50°C