I have a rs232c stepper motor controller connected to a PC running NT4. I have full control of the device (read and write) when using the hyperterminal program (comes with NT4) and everything work fine. Without changing anything except running Labview<->Serial.vi from the LV5 distribution disk, I was only able to listen (serial read.vi ) to the device but not controlling it. It appears that ascii commands sent (serial write.vi) are ignore by the device, while the same ascii commands sent via hyperterminal are accepted. What are the likely reasons for this? The port parameters appears to be OK because I was able to read from it. TIA.
I think hyperterminal adds the EOL(end of line) itself, and in serial write vi YOU must add it, try putting a LF and/or a CR in the string you write, and everything should work. Hope this helps
> I think hyperterminal adds the EOL(end of line) itself, and in serial > write vi YOU must add it, try putting a LF and/or a CR in the string > you write, and everything should work. > Hope this helps
