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Physical Connections to use 4 counters with NI 9411 in cDAQ 9178 chassis

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Hello,

 

Currently I have a NI 9411 module in a cDAQ 9178 chassis.  I am using 2 of the counters to read frequency measurements.

From the NI 9411 pinout diagram (see pdf file attached to this post), these are the connections I made:

 

CTR 0 SRC, pin 1 to COM/ground

CTR 0 GATE, pin 2 to first frequency signal

 

CTR 1 SRC, pin 6 to COM/ground

CTR 1 GATE, pin 7 to second frequency signal

 

The problem is now I'd like to use the 3rd and 4th counters in my cDAQ 9178 chassis, but I am confused how to wire

in the 3rd and 4th frequency signals, because CTR2 GATE is pin 1 and CTR3 GATE is pin 6.  Can I change the pin assignments

to use the other pins in the NI 9411 module for counter frequency measurements?  I haven't figured out how to do that in MAX

configuration.

 

Thanks,

 

Anna

 


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