I am trying to communicate with my new instec mk2000 temperature controller connected to COM port. In NI-MAX i/o test, I am getting inconsistent output for read. Sometimes it gives correct output for *IDN?\n and sometimes i get errors like ''invalid character",''undefined header",''time-out''. Sometimes I also get output for a previosly sent command when new command is sent.
port settings are set to
Baud rate: 9600
Data bits: 8
Parity: Even
Stop bits:1
Flow control:none
Simple Call device program in Labview is showing time-out error everytime.
Please help. I am clueless....!!!
Thanks in advance