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I have quite a lot of experience using the Motocom32.dll files. This is for the XRC controller however, and may or may not relate to the NX100. Assuming it does you would need to purchase the motocom32 package from motoman which includes a security dongle to avoid non-licensed use.

Leading edge means the timer starts when the signal is low then becomes high. Trailing edge means the timer starts when the signal is high then goes low

Out of interest what kind of machines? The company I work for invented all electric bending machines in order to reduce setup time compared with hudraulic machines

Try re-installing drivers for mouse? Possibly re-installation of windows in the extreme. @IRStuff, I don't get why you reply to every post in the general computing forums with "post at tek-tips" a) why not give folk here the chance to reply first b) if this forum is not meant for such questions...

What PLC? Are you sure the instance you are using is in the same units?

I agree with last poster. You are simply not going to get drawings and must reverse engineer

Take a look at http://books.google.co.uk/books?id=qLekBAZUJloC&pg=PA184&lpg=PA184&dq=regulations+cables+conduit+iee+size&source=web&ots=nK74fvg7QV&sig=o-SPMYXVW4iABSHkcBWVIiuCsgc&hl=en

You can get USB to serial converters (232/422/485) from easysync, they usually deliver next day. Programing-wise they are just like a standard comm port

With robust drivers / software it *shouldn't* matter. However best is remain plugged in until power back up.

Lots of people can do what you need, my curreny fave is baldor. Ask for stuart calvert

I totally disagree with the last poster, using the same code makes perfect sense in many applications. However I agree with marshg 100%, and would like to add that you should learn ladder logic - it is incredibly simple

S7-200 is more than capable for any "home" application IMHO. What advanced features do you think the OP requires that justifies spending extra cash? Also s7-200 is a damn site better than any modicon (again my personal opinion), some people love Modicon, I just don't see why.

I would tell your customer that they need to upgrade the PC as part of the package. This will also give them a fall back position - should anything go wrong with the upgrade the existing system is unchanged. It will also make your life easier as much of the work can be done at base rather than...

You mean potentiometer?

Here is a Logo http://cgi.ebay.co.uk/SIEMENS-LOGO-PLC-WITH-EXPANSION-MODULE-MORE-I-O_W0QQitemZ290222359398QQcmdZViewItem?hash=item290222359398 and S7 200 http://cgi.ebay.co.uk/SIEMENS-S7-200-SIMATIC-PLC-CPU-222_W0QQitemZ290222358028QQcmdZViewItem?hash=item290222358028

I would look for siemens s7 200 series or possibly even logo depending on your experience and number of IO. Both have all the features you need as standard. Logo you can even enter simple programs through onboard keypad, very different to a standard PLC but for occasional users can be ideal.

You would need the information on the communucation protocol from the manufacturers. RS232 is the wiring but doesn't define the actual message structure.

I would try posting in a different board that is more relevant. Maybe "Transmission, Driveline, Hybrid Drive engineering"?

Just have a loop monitoring the switch and sending the message when relevant

Or to solve the original problem anti-vibration mounts or a cam / toggle mechanism to give mechanical advantage?