PLUS+1 User Forum
PLUS+1 Hardware => Controllers => Topic started by: dlewis on November 23, 2010, 07:29:05 PM
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On the different controllers is Pin1 (Power Ground) common with Pin 9 (Sensor Ground)? I ask this question because we use a temperature sensor that grounds through the chassis and therefore the ground returns to Pin 1. I use a wide range of controllers from the MC024 through the MC088.
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I don't want to say this for fact since my memory is usually pretty bad, but I think the sensor ground floats just a bit. This way they can keep a true regulated 5V differential between the sensor ground and sensor power. If it were tied directly to the MC050 chassis ground pin then there would be no need for it.
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Hi!
The grounds are internally shorted together, there is not a difference electrically.
Best regards // Thomas