writing lpt1

[tinnitus]

Hello,

i would like to control a tinsley multiplexer trough lpt port

i trying to write to lpt1 parallele port , but labview send me an error -1073807339

that indicate a timeout i use a 5s timeout but error still there 

what i m missing, have you same error with this attached vi ?

vi used in attachement

Best regards

Tinnitus

[Coq_Rouge · Accepted solution]

Hi if you have not solved this yet. I think your problem is that you have not tied the nACK and or the paper out pin to ground. This is inherent in the port/printer communication protocol 

http://digital.ni.com/public.nsf/allkb/B937AC4D8664E37886257206000551CB

[wond3rboy]

Hi, try using a while loop for continous writing like this. Otherwise ,the VI that i have uploaded has been tested with out anyproblems.

[tinnitus]

thanks yes i remember that this night

because i built only two  port strapping modules for and not for the third  !!!!

thanks