over run error occur in VISA serial read

[chasan_2k]

Dear all

i am trying to access Meriam pressure gauge thro serial port

in reading the dat from the device some time i get an error stating that" an over run error occured during transfer. A character was not read from the hardware before the next character arrived"

pls help to clear out this issue

Thanks

Sekar

LabVIEW-Engineer

Emerosn

[chasan_2k]

iam getting error code 1073807252 in the above program is there any remedy to overcome the above VISA over run error

pls see the attached vi in the previous message

Thanks

sekar

[Krista H]

Hi Sekar,


There are several reasons that this may be happening. There is a Knowledge Base on flow control that might help. This might fix the error but there is also a chance that you are just not reading from the serial port fast enough. You can increase the buffer size but this may only delay the problem because a bigger buffer may still eventually overflow, it might just take longer.  You could try reading more often or reading more bytes at a time.