SIMOCODE Pro V digital inputs

Dear experts;

I need some information about the simocode pro V digital inputs. I need to know wich voltaje   levels accepts for "0" logic and "1" logic. I could not find the information that I need (current , voltaje).

I require this is because someone in our department is getting a MCC from siemens  with this simocode prov,  but I believe that no one  think about the distance for 24 DC (800 meter single, so 1.4 km total), The use will be for dry contacts and I need to know the information for calculations. 

Best regards

hp    

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Split from S7 300 Digital input modules.

Dear hp,

The SIMOCODE pro manual shows at chapter Technical Data following information of Basic Unit inputs:

24V DC

Cable lengths (single): 300m

Input characteristic: Type 1 according to EN 61131-2

Best Regards