VISA: (Hex 0xBFFF0015)timout expired before operation completed

[madhankumarlv@gmail.com]

hello sir,

 I connected  the serial port of PC with the external usb to gpib converter. I opened MAX and expand the configuration tree on software and select VISA 5.0 and expand it then NI visaic.exe and Launch visaic.exe and visa interactive control opened in that ASRL3(com3 to USB)  and it opened a window .In write *IDN?/n and click to execute  and i got return count:6 and return status:0 and in read i havfe given the count 100 and execute it   and it displays the return count:0 and return Status:BFFF0015

after that when i run the program,it displays the error

Error-1073807339 occured at VISA read.

Possible reason(s):

visa(Hex 0xBFFF0015) timout expired before operation completed.

and i have attached the block diagram with the error window

Anyone know what was wrong?

Thanks

[Dennis_Knutson]

Any number of things could be wrong. Did you do a search for that code? Only thing that I notice is you mention /n. That is not correct. The termination character is \n (backslash n).

What kind of converter are you using? It does not make sense when you say you connect a serial port and then say the converter is USB-GPIB.