PROFIBUS Manual

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Navigation: FDL: data transmission > Services for data transmission

SDN: Send Data with No acknowledge

The SDN service is predominantly used for broadcast or multicast messages from an initiator to several other stations on the bus and therefore remains unacknowledged. It is used for synchronization tasks and status messages, for example: global control.

SDN: Send Data with No acknowledge

Service confirmation (con) is therefore generated locally and merely confirms that the telegram has been sent.