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having problem using opto-isolator on Elvis ii baord

I'm a student who's been studying using opto-isolators  as a counter. Recently I have to design a project which must use 4 opto-isolators for it .

The problem is on Elvis ii board there are only CONTROL0_SOURCE and CONTROL1_SOURCE on the bottom-right of the board for "counter".

what I've recently learnt is to use DAQ Assistant to acquire inputs from  CONTROL0_SOURCE for counter inputs, but I can't think of a way to somehow merge the four outputs of  my

opto-isolators so it could fit in for the only two CONTROL_SOURCE for counter.

 

the original circuit design for  the four opto-isolators is quite simple I'll show it with the image I put.

Here's the question: Will this still work if I connect the wire to the top-right part of the Elvis ii board which stands for DIO.

In this case I don't need to worry about lacking input sources for counter since there DIO0~23 on the board .

 

IF this can't work, please suggest some solution about how I can do to accomplish this task.

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