Important 
 The common pin is not shared through all the 32 channels, but by groups of 8 channels. Isolation 
 concept is shown in case of  32xDI  . 
 Hint 
 Check how to use DO as a switch on this  LINK  . 
 4.7.3. IOLITE-8xDI-4xDO 
 IOLITE 8xDI-4xDO module has 8 digital inputs and 4 digital outputs. Digital IN and OUT banks are 
 isolated from each other and can be powered by separate external power supplies. Module comes in 
 rack version and offers watchdog function and is a perfect choice for more demanding industrial 
 applications such as valve control, with a maximum sink current 0.5 A and maximum switching voltage 
 50 V. 
 IOLITEr-8xDI-4xDO module