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The work of the USB2COM adapter in Windows 7. What and how? - bug-code.com Q&A

The work of the USB2COM adapter in Windows 7. What and how?

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Recently, the manufacturers of laptops thrown out of most of its devices COM port which is needed for me is only comparable by the laptop. Sort of activity comes through him "fill in" the different PLC, and connect to other devices that support RS-232 standard. So, back to the essence of the problem. On all previous laptops and notebooks colleagues running Windows XP on any of the USB2COM adapter (tested 4 the manufacturer — MOXA, Phoenix Contact, Defender, NoNAME) not had any problems with their work. As well no problems and with a real COM port.
Now, on a more "committed" laptops neither the COM port nor the ability to install a full Windows XP, no, and correct work failed to achieve any one adapter USB2COM.
Maybe someone faced the same problem and already solved it?
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5 Answers

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Prolific USB to Serial Adapter (PL2303) works fine, but driver for Win7 even is a standard search facility of Windows drivers.
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The problem is not installing the driver, but the fact that the device is not working properly — that is, on Windows 7 with the same settings from Windows XP to communicate, for example, with any PLC fails.
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And still have problems with win7 x64
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If you want to pupate, that is a good microa FT232R. It can fulfill a role not only RS232, but RS422 and RS485 adapters. I will use UART on all developments on the USB controllers where necessary. For all win-systems, test, worked perfectly without any data loss. The issue price is ~5$. There are in packages 28-Lead SSOP and QFN-32. With harness covers an area of 5-penny coin, ie it can be embedded inside of beech. Besides, it can even be issued for any device using the config tool.
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If there is a problem I check the connection to the device at the other end of the port manually.
Launch Putty to the desired com port (previously used HyperTerminal but he was thrown out of Windows)
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Driver problems should not be. On my Win7x64 at the moment, two ports on the USB2RS232 adapters (prolific), two ports on the PCI expansion Board and two virtualnyh port attached to the controller's chip like FDTI. All rustling.
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Another note on setting virtual port that appears in device Manager e.
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Also can the software itself is very old:
Some are not properly inicializirati the port settings buggy for Overlapped (asynchronous) calls.
Also known cant quite old school when the software understands more COM4
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Long shot but maybe can be problem with rights or the UAC is better to Run As Administrator
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