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Topics - ScarBelly

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Technical support / Sourcing I/O
« on: July 19, 2012, 06:18:57 AM »
I've used the FMD1616-10 with very good results.  However, I'm about to meet some resistance to other uses since it only has sinking I/O.  Do you have any plans to offer sourcing as an option or better yet use configurable sink or source circuits?

In industrial automation, sourcing outputs or often required for safety in that an output wire shorted to ground can not activate a dangerous output.  It also keeps troubleshooting more understanble to maintenance personnel used to relay outputs.

I also need to interface to existing control systems that have sourcing I/O and must use external relays to invert the signals.

[Edit]  So I think we will go with the F1616-BA.  I would still like to see a version with solid state source/sink I/O.

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Technical support / Need unsigned integers
« on: March 02, 2012, 12:50:24 PM »
On an FMD1616 the following does not work for me when Input 16 is used due to it reversing the sign of the input as a signed integer.

If (INPUT[1]  > 0) AND (INPUT[1] > DM[1]) Then
         'DM[1] contains the last state of INPUT[1] and I'm looking for additional inputs On.
    SetBIT Relay[1],0      
EndIf

Is there a simple way around this?  Could you consider adding unsigned integers?
Thanks

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