I'd like to know how to do comunication between cDAQ-9172 and CompactLogix L32E, 
because I'm developing a project based in simulation of  the industrial process, using the PLC  
for to perform the control of the valve in process with bolean variables, hence I'm using the cDAQ  
with gate of date of the PLC, but I have problems with the comunication devices. Be grateful if someone  
could help me.