@LTBALAZS wrote:
Well, in my code i initialize the following instruments:
TESTO 435, LMG95, BMT932. Each has its own COMx port
I also have to create and write to file the measurement data. (delay of main while loop is 1000ms)
My project without BMT932 works well though,
Without seeing your code we can only take your word for it that this is how it works. Obviously that is not how it actually works or you would not be getting the Error -1073807246.
What I am getting at here is you need to post your code so we can see what you did wrong.
Is there a 'limit' of number of instruments that i can use in my project?
The only limit would be the number of Com ports a computer can have (I am guessing 255)
I just looked it up and according to this Maximum Number of Serial Com Ports on a Windows Computer
The maximum number of COM ports is dependent on both the operating system (OS) and the serial driver.
The maximum number of serial ports that NI-VISA currently supports on any platform is 256.
COM port limitations are listed below:
On Windows NT, NI-VISA limits the number of COM ports to 99.
On Windows 95, 98, 2000, and XP the OS and NI-VISA limit the number of COM ports to 256.
On Windows 7, 8, and 10, NI-VISA limits the number of COM ports to 256.
For the serial ENET products on Windows NT and 2000, NI-VISA limits the number of COM ports to 256.
Pretty good guess, huh?
========================
=== Engineer Ambiguously ===
========================
