I just got a Dell that has a docking station with what appears to be a real serial port. To be honest I use the USB to serial with the FTDI chipset internally (Startech ICUSB2321F) and it hasn't let me down yet, including some old 16bit win95 era applications (In a virtual XP machine hosted by Win7 64bit). Hp 4700 Firmware Update Error more. Dell does sell a mini portable extension that plugs into the dock connector that provides legacy ports like serial and parallel. I didn't bother getting it because the USB to serial works and is more convenient.

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As they say, your mileage may vary. If you can test your software ahead of time with a $20 USB-serial converter on the PC you already have you would be a step ahead. I think the laptop I have has some kind of PCI-ish expansion slot, but again I didn't need it (But it is probably good insurance to have such a thing). Depends mainly on the software you need to run and the strict timing possibly requested by protocols. Ethernet converters may put some relatively considerable delay.

If you have to deal with Siemens Step5 programming software, check for a true COM port or a PCMCIA/PCE card providing interrupts. If you make use of VMware or VirtualBox, I'm afraid PCMCIA/PCE cards cannot be seen by the virtual machines, in that case you may use USB/serial or Ethernet/serial converters. There are then different flavors of USB chips (Prolific and FTDI just to name a few) and according to colleagues they seem to act differently on different PCs and different operating systems, so maybe it's not wise to rely just on one single USB converter model. Hp 990c Driver Windows 7 Download. We recently purchased a pair of Panasonic Toughbooks with on-board serial ports. Unfortunately, they come preinstalled with Win7, so some of your PLC software may not work. Contoh Program Kasir Dengan Php Programming Pdf.