Reading data off NI 9219 fails

Hello,
I'm having problem with my cRIO 9219. I have an anemometer (it measures the velocity of wind) that gives the output in 0.4-30 V DC where 1mV = 1 m/s. For the anemometer I have two outputs (plus and minus connections) that I connect to pins 4 and 5 on the module. I attached the VIs I use to read the data coming in. The problem is that the data on the chart is fluctuating from -0.5V to 0.5V which doesn't correspond to the actual reading of the anemometer. And I check the anemometer with voltmeter, too.
Solved!
Go to Solution.
Attachments:
RT.vi ‏175 KB
cRIO anemometer.vi ‏31 KB

Does your anemometer requires any power input to generate the output signal (corresponding to wind speed), if so, have you connected the ground of power supply (to anemometer) to the ground of DAQ card (measurement system)?
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    [timesten@tap2 bin]$
    [timesten@tap2 bin]$ ttrepadmin -showstatus sub3
    Replication Agent Status as of: 2009-10-13 20:43:05
    DSN : sub3
    Process ID : 18898 (Started)
    Replication Agent Policy : manual
    Host : TAP2.TEST3.COM
    RepListener Port : 58371 (AUTO)
    Last write LSN : 0.707088
    Last LSN forced to disk : 0.707088
    Replication hold LSN : -1.-1
    Replication Peers:
    Name : ACTIVEDSN
    Host : TAP2.TEST3.COM
    Port : 0 (AUTO)
    Replication State : STARTED
    Communication Protocol : 24
    Name : STANDBYDSN
    Host : TAP2.TEST3.COM
    Port : 0 (AUTO)
    Replication State : STARTED
    Communication Protocol : 24
    RECEIVER thread(s):
    For : ACTIVEDSN
    Start/Restart count : 1
    Transactions received : 0
    Total packets sent : 46
    Tick packets sent : 0
    MIN sent packet size : 48
    MAX sent packet size : 96
    AVG sent packet size : 65
    Last packet sent at : 20:43:00
    Total Packets received: 46
    MIN rcvd packet size : 48
    MAX rcvd packet size : 134
    AVG rcvd packet size : 51
    Last packet rcvd'd at : 20:43:00
    RECEIVER thread(s):
    For : STANDBYDSN
    Start/Restart count : 1
    Transactions received : 1
    Total packets sent : 45
    Tick packets sent : 0
    MIN sent packet size : 48
    MAX sent packet size : 96
    AVG sent packet size : 66
    Last packet sent at : 20:43:00
    Total Packets received: 50
    MIN rcvd packet size : 48
    MAX rcvd packet size : 190
    AVG rcvd packet size : 56
    Last packet rcvd'd at : 20:43:00
    [timesten@tap2 bin]$
    [timesten@tap2 bin]$
    Edited by: Muhammad.Usman on Oct 13, 2009 9:57 PM

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