need help controlling MFC's

[RA_UPRH]

The situation is this...my current assigment is to develop the set up for the use of the MFC's...that is all i'm given the how to's are all up to me...i have gotten as far as converting the 15 pin outlet of the mfc to a LAN conecction of 8 and of thoose 8 finding out the 4 that the rs 232 to rs 485 interface converter uses...after all this the  "measurement & automation" software did recognized the communication...some computer problems came up and now i don't even get that... i'm in MFC hell!!!!!!!!! some help ANY help at all would be appreciated ...the MFC's to use are AFC 50D from Qualiflow.

[Wayne.C]

RA_UPRH,

You really need to better describe what equipment/instruments you have and how you wish to use them.

You mention that the MFC's have the 15pin connector so I'm assuming they do NOT have the RS485/Modbus communications option.  Is that correct?

How many MFC's are you dealing with?

You mention a RS-232/RS-485 converter.  Manufacturer?  Model?

[RA_UPRH]

The equipment is as follows a desktop computer with 2 serial ports and labview 9, the mfc's are made by Qualiflow the model is AFC 50D. The communication used by it as far as I understand is RS232C although the manual says it has a RS485 option, for now I'm trying the set up for 1 MFC but is expected to be used for at least 4.  As for the RS232/RS485 converter I don't have make and model information only some capabilities parameter.

My objective is  build the set up necesary to integrate the controlled MFC's in sensor testing experiments for both accuracy and leakage prevention.

[AnalogKid2DigitalMan]

If the unit has a 15 pin D, then it is serial. The RS-485 option uses RJ11 connectors.

-AK2DM