Does anyone have information on how to program an MKS 247C or MKS 270B?

[gwong]

I am having trouble finding information through the company and the manual on how to program these two devices. (what signals it accepts in order to read/write?) Any advice?

[ebarker]

What interface will you be using to communicate with the device? GPIB? Serial? Parallel port? I've never used this instrument, but without knowing from the company how it communicates and what signals/commands to use, it could be very difficult.

[gwong]

All the information that the company gave me was that the signal from the machine is an analog signal and I am assuming that I'd be using a serial rs232 connection.

[Reed_Blake]

gwong wrote in message
<506500000005000000F7130100-1042324653000@exchange.ni.com>...
>All the information that the company gave me was that the signal from
>the machine is an analog signal and I am assuming that I'd be using a
>serial rs232 connection.

The 247C has analog inputs and outputs. You will need a multifunction
card with analog inputs and outputs to connect to this device. Use the
standard analog input and output VIs. The product spec sheet is at
http://www.mksinst.com/pdf/mfcontlr.pdf

The manual is also available on line, but I didn't manage to copy
the url.

I wasn't able to find info on the 270B, but I did find the manual for the
270D. This instrument has both analog and BCD digital outputs.
You could use a multifunction card to
connect to this device. You
would probably have to write your own VIs to use the BCD digital
lines. The analog inputs and outputs may be a lot easier.
http://www.mksinstruments.com/pdf/270Dman.pdf

Keep in mind that these are high accuracy devices. If you use an analog
interface, you probably want to get a card with 16 bit or better resolution.

You could also replace these instruments with newer devices that have
computer interfaces built in.

Regards,
Reed.
--
Reed Blake
Beta Technology
Industrial and Scientific Computing