load data, excel, trigger

[Aquarel]

I established a software which sends out 8 different values to an external device (serial connection). Via the parallel port I receive a TTL-signal, so wih every incoming rising flank the values are sent out to the device. Now I want to load a set of data (for example 10 different sets of this 8 values) from an excel file and with every TTL-siganl send out a different set of data! Can anybody give an advice to me, how to solve this problem? Thanks a lot!

[Martin K.]

Hi Aquarel
what is your programming tool???

[Aquarel]

I am using LabVIEW 7.1! I simply want to sent out with every trigger signal a different value: first incoming trigger...value 1, second incoming trigger...value 2...and so on.
Thank you!

[Sebastian N]

Dear Aquarel,

this should be not so difficult.
Use a edge evaluation (attached vi) and count the numbers of positive edges. With this value, you can index a array of your values (value1,value2,.. and so on).
Now you should be able to send for every trigger a different value.

Hope this helps

Best regards,

SebastianN
NI Germany