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NI 9411 don't become 'ready' status

hi, all.

I'm a new to labview and fpga development.

I'm trying to get rotary encoder signals from NI 9411.

In VI, I put FPGA I/O method node to acknowledge that NI 9411 is ready, but the output from this node is False forever.

Of course, I supply 5V to NI 9411 and test it.

Also, maybe I install all I need to start NI 9411 (these are shown in this page(https://www.ni.com/ja-jp/support/documentation/compatibility/09/software-support-for-compactrio--com...)).

 

I'm glad if any advice comes.

 

other information

Controller: CompactRIO 9049(supply 15V)

Encoder: Maxon MR Type ML(I use it as two-phase(A and B))

 

if there is any information I should add, please tell me.

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