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Easy To Use DNC Communication Software Fom dnc4U
Windows CNC File Transfer Program For CNC Machines
   

 

Q. Will it run in the new Windows 7?

A. Yes we have customers using Win 7 (32bit & 64bit) no problem at all. dnc4U will run on Windows 95, 98, 2000, ME, NT4, XP, Vista & Win 7. We do not really recommend Win95 though.

Q. Will it run in the Windows Vista?

A. Yes we have customers using Vista no problem at all. dnc4U will run on Windows 95, 98, 2000, ME, NT4, XP, Vista & Win7. For more info on Vista click here...

Q. After I install dnc4U for the first time, it will not load when I click the icon.

A. Right mouse click the dnc4U icon, and "Run As Administrator". That should make the software run everytime.

Q. After I install dnc4U for the first time, it says there are zero days left.

A. Right mouse click the dnc4U icon, and "Run As Administrator". That should make the software run for 60 days.

Q. Why isn't my USB to Serial adapter working?

A. Since the release of Windows XP many laptop manufacturers no longer have a "proper" serial port at the back. Notable exceptions are quite recent IBM Thinkpads and some Dells with the docking station. Instead there are only USB ports. As a result users are finding that a USB to serial adapter is the only way they have to communicate with their CNC machines.

Unfortunately all USB convertors are not created equal, especially if they contain the "prolific" chipset. Devices intended for use at home are now expected to work in the harsh industrial environment, and unfortunately many are not up to the job. Many manufacturers of USB to serial adapters are not 100% compatible and communication to with CNC machines is either unreliable, very slow, or limited to one way transfer.

For laptops we recommend you use a PCMCIA/Express to serial card, they are far superior and often not much more expensive, preferably with some form of isolation. We have several Quatech cards and found them to be very reliable, in addition they have all the required drivers for all versions of Windows.

If you must use a USB device, then we have used Keyspan USB to RS232 adaptor cables - they work great when others just don't >> Click Here or Here and are reasonably priced. We have reports from several users that MOXA are also reliable.

Please take time to watch this video for additional information and resources about USB devices from BB-Electronics. This company sells more robust rugged USB devices (albeit more expensive) much more suited to industrial applications www.bb-elect.com. Often it is worth spending more money initially, than wasting time when you cannot get the USB to work.



Unfortunately it's not as simple as listing USB to RS232 devices that work for one user, because sometimes the same one will not work for another. So whilst we list several options above, there is just no 100% guarantee that any will work with your computer.

Quite often we think that it is well worth the while to buy a secondhand laptop off ebay with a proper serial port. In many cases this would work out cheaper and far more reliable than having to buy things such as USBs or Express cards.

Q. When I try to change the CNC settings, it says I have insufficient access to save the changes away.

A. This is because you do not have rights to edit the settings file. This file is called "dnc4u-settings.ini" and is located in the dnc4U folder.

Right click the "dnc4u-settings.ini" file, and then click properties
Click the security tab
Under group or user names, click your name and see the permissions you have. You need full control

Q. Will dnc4U work with my CNC?

A. This is one of the most commonly asked questions. All we can say is that if your CNC supports the RS232 protocol, then yes it will. We even supply a list of predefined CNC templates to get you started for many popular machines. We do not support exotic proprietory protocols that are outside the scope of RS232, such as LSV2, Fidia etc.

Q. What computer access rights should I give?

A. dnc4U needs to be able to create temporary files and be able to write to your system registry. If it can't it may lock you out saying its expired. If you get this, then you should do the standard thing of giving users full access and then gradually tighten things up. For typical use, a standard "power user" would be just perfect, they have Modify, Read/Execute, Read and Write properties.

You should install dnc4U using Admin rights and run the software at least once with admin rights to ensure correct operation and installation of dnc4U.

Q. Do I need any specific hardware to use dnc4U?

A. Depends. If you are using a PC computer or a laptop that has a free com-port in the back then no you dont need anything extra. If you are using a newer laptop, then the odds are that you may have a USB port only, in which case the cheapest a USB to Serial cable convertor, they are cheap only about $30 However, we always recommend either PCMCIA or EXpress cards as they are usually far more reliable than USB

Q. Can I send and receive to more than one CNC machine at a time?

A. Yes you can run up to 64 CNC machines at once, simultaneously, all you need do is load dnc4U as many times as you need it, because you can run up to 64 "instances" of dnc4U at the same time. You do however, need a free communication port for each CNC transmission. You can get multi-port serial cards, we really like MOXA we've used them for years and they are really easy to setup.

Q. How much is all this going to cost me ?

A. You can see our latest price list click here.. We give great discounts for multiple purchases, and once you have bought there are no upgrade costs, ever.

Q. Does dnc4U support Heidenhain Blockwise for drip feeding large files?

A. Yes.

Q. Does dnc4U support Haas Xmodem for drip-feeding large files?

A. Yes.

Q. I receive files from my CNC and after a while the data is garbage then OK then garbage again.

A. You need to either turn off your communication port receive FIFO buffer or reduce the receive value to its smallest level. You access these by going into Windows Control Panel, Device Manager, LPT & Com Ports. Select your com port and click the advanced tab. Then turn off the FIFO option. You may need to do this for each of your com ports. Also tweak the size of the receive buffer inside dnc4U, this can affect older computers.

Q. I try and send or receive a file and all I see are XXXXXX.

A. dnc4U has expired. To purchase we need your computer software code. You get this by clicking the register menu and entering this info onto our webpage.

Q. I've purchased dnc4U but I haven't received anything yet.

A. If you purchase using WorldPay then you will automatically receive the licence immediately, so please look in your spam folder if nothing arrives. Also please do make sure that you enter your own e-mail address correctly or we may find it impossible to contact you until you contact us asking where it is!.

If you use PayPal, then we do not automatically generate your unlock file, each one is done specifically for a customer. There may be a delay of a few hours, but it will never be more than 12 hours.

If you have an email address from an ISP like AOL or maybe a free-account, then we have recently noticed their e-mail filters are actually blocking e-mails coming through, and customers assume that we have not sent anything, but we always do!. We now send the information as a URL within the e-mail rather than an attachment, as anti-virus and firewalls may block those with attachments. Just click the hyperlink and save the unlock file to your desktop- then follow the easy to use instructions in the e-mail.

Q. After I receive the unlock file it does not register.

A. Please follow the instructions in our e-mail that we send you after purchase. You have to do it in a specific sequence. We have never had a code fail, we are afraid it is always down to incorrect input or failure to follow our instructions.

Q. I need to change computer will the software code still work?

A. No it won't, however we are happy to replace the code FOR FREE.

Q. dnc4U changes my system date : Why?

A. We may, under certain circumstances, change the system date to a universal format whilst it is in demo mode. This is just because some date formats are very wierd (to us anyway). If this happens, then once you have loaded dnc4U a couple of times and you change the format back to your normal format, dnc4U changes it only whilst it is running, and it swaps it back when you close it down. Once you are registered it no longer changes the date at all, so it is always what you want even when running.

Q. Do you charge an annual maintenance fee?

A. No we hate that idea, unlike other DNC software vendors we don't do it, once you have paid for dnc4U that's it. You can download the latest version at all times free of charge. We do not notify you either as we don't want to send you any spam, its entirely up to you if and when you want to upgrade. FREE LIFTIME UPGRADES

Q. I want to run dnc4U on more than one computer, can I copy dnc4U onto more than one computer with a single license?

A. You need a license for every computer you run dnc4U on. We look at it this way. If you made 100 parts for one of your customers, would you charge him for 1 part or for 100 parts ? However, we have price breaks and we offer very good discounts for multiple licenses.

Q. Which languages does dnc4U support?

A. dnc4U is only available in English BUT - you can fully customize the texts, menus and buttons into your own language

Q. After I purchase what else will I get?

A. dnc4U is only available via electronic-download, so you won't receive any boxes, CD's or printed manuals. We e-mail you a sales receipt, you should get this immediately or a few days after your purchase.

Q. I'm drip feeding large files and it stops after a few hours with a timeout message?

A. dnc4U sends data in bursts, usually block by block, but also in constant sized chunks. Either way it will stop if an XOFF is sent (or the CTS goes low) and will not start again until an XON is received (or CTS goes high). If your CNC is taking a long time to interpret the NC code then dnc4U will timeout after 600 seconds - it assumes that transfer has stopped because nothing has happened for this length of time. If this happens to you, increase the timeout to say 36000. This means dnc4U will not timeout for 10 hours, enough time to restart drip-feeding - there is no increase in cycle time whatever value you use (we also recommend that you turn off the receive FIFO buffer and turn off all power saving features such as screen savers etc)

Q. Its says its expired, I have never run dnc4U before?

A. If you have NEVER run the software before, then you do not have sufficient access rights and permissions to run the software. You should log in as administrator - this will see if that cures the problem. Then get your IT guy to slacken up on some of the access rights. The installation setup has a file called diagnose.exe, run this and run the test. You need read/write access to the registry - use regedit and set permissions for users to access the registry. For XP, Vista and Win7 we always recommend that you run the software "as administrator" simply by right mouse clicking the dnc4U icon and selecting that option from the list.

Q. I'm drip feeding large files do I need to do anything special?

A. Not all CNC will drip-feed, so you should consult your manual to see if it uses special protocols. But basically drip-feeding on CNC's like Fanuc, Haas and many Japanese and US CNC's is simply a case of handshaking between your PC and CNC. We would always recommend that you turn off or reduce to minimum value the receive FIFO buffer. If you use a com port that shares an IRQ with another device such as a mouse or modem, that this other com port is not used. ie com1 shares an IRQ with com3 and com2 shares an IRQ with com4. All screen saving devices and power management devices are turned off. Some USB devices can "go to sleep" after a while and if data is sent every 20 minutes, which is common, then the USB may not respond either fast enough or not at all to any XON/XOFF etc.