Khodarev

Ok, in my recent post i've been asking how to split serial com port. Today the question is much tougher:) So, what i have? I have a video camera with EIA-422 interface. What i need? I need to be able to acquire video image from that very camera in two different applications. One application is mine, other... well, it's some other application. Currently video is being acquired through NI PCI-1422 board. And there is also an extension box to convert EIA-422 cable to 100 pin cable (well i actually don't know what's going on inside the box, so i can not tell if there is any electronics inside or there is only wire routing). And obviously either my application works or the other one (depending which starts first). So i've been thinking to buy another PCI-1422 board and somehow split EIA-422 wires. The problem is that i can not find an off-the-shelf splitter which means that either it can not be done or there is another standard solution. As always any idea would be highly appreciated. Alex

QUOTE(neB @ Feb 8 2008, 12:40 AM) I wonder what is Xmit and how to use it? Anyway for now i've settled down with software splitter (Serial Splitter from Eltima). It seems to do the trick. The only problem is that i have to reconfigure that "other" application so it will use virtual port that Serial Splitter creates. It's not such a big deal but still it is not flawless victory:)

Hello hardwireworkers, here is my situation, i have an application which controls a specific device using COM port. I want to write Labview application which would be able to send commands to the same device using same COM port. The problem for now is that either my (Labview) application works or that other application works. They can not access the same COM port resource simultaneously. So the question is how to do the trick. I've used serial port monitoring program and it works just fine. I can also use that program to send commands to the device while main control application is running. I remember that back in old versions of Labview there have been low level commands for the serial port. I believe they may work. Unfortunately i don't have LV 4 or 5, so i can not look inside these functions. I wonder if anyone has it? Another solution to this problem would be wire splitter. But i'm trying to find software way for now. Any ideas would be highly appreciated. Thank you in advance. www.xinstruments.com Custom Software for Industrial Automation P.S. i've posted a copy of this topic on NI.com

The situation is following: the program communicate with devices via usb interface. All is good until number of opened VISA resources is less than 32. When this limit is reached no more VISA's can be opened. So i can control only 32 devices at the time. Thus question is: is it possible to overcome this limit or not? Thank you in advance.