Mr Serial, just in case you don't know RS232 isn't modbus, just saying
Mickey, l was trying your proverb, l was just more drawn out (allowing for the penny to drop).
I thought l was very christen like, in provocation (nearly)
Of course if he had the double biased mosfet/zener bridge rectifier with induced filtering adapter on the other end of the usb, it would have fixed this minor issue, go the double biased mosfet/zener bridge rectifier, its up there with the 1981 DeLorean DMC-12 time machine.
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