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InterviewSolution
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Is Profibus A Single Or Multi-protocol Technology? |
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Answer» Within PROFIBUS there is only one communication layer implemented which is; PROFIBUS DP. Based on this communication layer, several device profiles are defined in the application layer. These profiles provide common data, diagnostics and parameters for the end-user. SOMETIMES people are confused with PROFIBUS DP and PA, but the only difference is the physical INTERFACE. In fact, a PROFIBUS PA device is a PROFIBUS DP device with an application PROFILE suited for the process industry. Within PROFIBUS there is only one communication layer implemented which is; PROFIBUS DP. Based on this communication layer, several device profiles are defined in the application layer. These profiles provide common data, diagnostics and parameters for the end-user. Sometimes people are confused with PROFIBUS DP and PA, but the only difference is the physical interface. In fact, a PROFIBUS PA device is a PROFIBUS DP device with an application profile suited for the process industry. |
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