Application planning   
4.3 Ambient and Environmental Conditions 
  SIMATIC IPC427C 
24  Operating Instructions, 04/2009, A5E02414743-01 
4.3  Ambient and Environmental Conditions 
 
When you plan your project, you should make allowances for: 
●  The climatic and mechanical environmental conditions specified in the specifications 
given in your operating instructions. 
●  The device is approved for operation in closed rooms only. 
●  Avoid extreme ambient conditions. Protect the device against dust, moisture and heat. 
●  Do not place the device in direct sunlight. 
●  Ensure that the distance to other components or the sides of cabinets is at least 50 mm 
above and 100 mm below the device. 
●  Do not cover the ventilation slots of the device.  
●  Always observe the mounting positions permitted for this device. 
●  The connected or built-in peripherals should not introduce a counter emf in excess of 
0.5 V into the device.