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Why No Signal Ground/reference Wire Is Used In Profibus Cables? |
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Answer» To ensure easy HANDLING a signal ‘ground’ wire is not USED by PROFIBUS. However, it is recommended to ISOLATE the interface circuit from the local ground (e.g. using Optocouplers) to reduce possible common mode voltages between transceivers. To ensure easy handling a signal ‘ground’ wire is not used by PROFIBUS. However, it is recommended to isolate the interface circuit from the local ground (e.g. using Optocouplers) to reduce possible common mode voltages between transceivers. |
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