The Plugable USB serial adapter allows you to connect legacy devices that use RS232 serial communications to computers that do not have a serial port. Although this usually works well, a number of problems can crop up because many of the devices people want to connect are older devices with various issues. A frequent problem is that the software that is necessary to connect to the device does not work under modern operating systems such as Windows 7 or above. Other problems can include using an improper cable, incorrect port settings, or a basic incompatibility between the Plugable USB serial adapter and the device it is being connected to. Drivers don’t load correctly, or the cable cannot be seen in Device Manager When the cable is plugged into Windows 7 or higher computers, the necessary driver should load automatically. If it does not load, make sure the computer is connected to the internet. If an internet connection is not available, download the latest drivers for the cable from the Plugable driver site here. For earlier Windows XP and Vista computers, the drivers must be downloaded from the Plugable website and installed. The drivers load successfully, but I can’t communicate with my device Serial communications over RS232 is a legacy from an earlier age in computer when devices were not necessarily plug-and-play. Several different variables come into play, and all must be set up correctly to ensure communications. Software Many legacy devices came with specialized software that is used to communicate with them over a RS232 serial port. Many of these programs were written years ago, and are not as automated as modern applications. In many cases, the software is not compatible with modern Windows operating systems. If the software won’t run, or runs with errors, check the website of the device maker to see what Windows version it is compatible with. Many times you.
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STEP 1: Download and Install Latest Tested ELM-327 Driver Files ( Cable should NOT be connected to your laptop yet. Only connect it when instructions say so.) Windows XP, Vista, 7: If you bought genuine ELM327 cable from Total Car Diagnostics - then you only need to install DRIVER PACK 3. After install, go to Step 2 to test it's working ok. If you bought ELM327 cable from elsewhere (clones, e Bay, other manufacturers) then install all Driver Packs below, because they cover widest range of chip makers. That's it! Go to Step 2 below to test if everything is working ok. Windows 8, 10: If you bought genuine ELM327 cable from Total Car Diagnostics here, then you only need to install DRIVER PACK 3. Then go straight to Step 2 to test it's working ok. If you bought ELM327 cable from elsewhere (clones, e Bay, other manufacturers) then install all Driver Packs below, because they cover widest range of chip makers. DRIVER PACK 1 Steps to install Driver Pack 1: If you have 64-bit Windows, double-click on: CP210x VCPInstaller_x64 If you have 32-bit Windows, double-click on: CP210x VCPInstaller_x86 DRIVER PACK 2 DRIVER PACK 3 DRIVER PACK 4 DRIVER PACK 5 Most Important! Steps to install Driver Pack 5: Right-click on ser2pl (icon has a little gear pic in it) and choose Install, as per below pic: Connect ELM327 cable to your laptop. Then. Go to: Control Panel » System » Device Manager » Ports ( COM & LPT) You will likely see a yellow mark next to Prolific, like this: Right-click on it » Update Driver Software Click Browse my computer for driver software. Select Let me pick from a list of device drivers on my computer. UNcheck Show compatible hardware. Select: Prolific driver version Install. That's it! The yellow triangle next to Prolific. should be gone. That's it! Go to Step 2 below to test if everything is working ok. STEP 2: Test if ELM327 USB Cable is Installed.
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