Reading data from a DGH D1711 (sensor)

[Giseli Ramos]

Hello,

I'm with a strange problem... I'm working with a DGH I/O module (model d1711 - http://www.dghcorp.com/digitalio/) that reads the status of one pair of sensors. When I use Hyperterminal, I can send commands and receive replies from the dgh module via serial port.

But it simply don't work in LabVIEW. When I use even the most simplest code to write to and read from a serial port (using the NI Examples), the dgh module simply don't send a reply to LabVIEW... LabVIEW can write with sucess on the serial port, but don't receive reply from DGH module.

I tried to use the example provided by DGH, but even it does not work (http://www.dghcorp.com/drivers/labview/Dghdemo.vi). I set the correct configuration for the serial port (300 baud, 8-N-1, no flow), but it does not work also.

I'm using LabVIEW 8.6 in Windows, and uses a USB-serial converter (it worked well in another applications using LabVIEW and I think that it is not the cause of the problem).

Anyone have any idea?

Thanks,

[Giseli Ramos]

Hi,

Forget the previous message...I've managed the problem. It is just a matter of adding timers, to give time to the DGH to respond before the program finishes.

Thanks,