[Communication problem]

Thank you all for the responses.  The solution that worked is the one presented by AlexUT.  Apparently my lack of understanding how to use STRUCT made the unit mad and it wanted me to cry.  Back to the help files and video tutorials.

[Communication problem]

Hi,

Is it possible to brick an EX-RC1 during a ladder download?  I am just learning Visilogic and do not have much experience with PLC's, so I make little adjustments to my ladder then download it to see the results.  My current setup is a Vision 280 (ID#1), the EX-RC1 (ID#2) connected via CANbus, and an IO-ATC8 set up for thermocouples.  I have downloaded to both units several times so I know my connection are correct.  When I encountered the problem I had changed the STRUCT(collect) in the IN module to MI's for the analog inputs.  I seem to have done it incorrectly because the download did not even finish and communication was lost.  I can connect the programming cable to the V280 and it talks fine so it is definitely the EX-RC1.  If I go to Connections->Communication & OS and hit 'Get OPLC Information' it times out and gives 'Communication Driver Error (206)'.

I would have expected an error of some sort, but to kill it seems pretty extreme.