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8.1.1.3 RequestSPDU: Flags

[RQ8.1] The flags of the Safety Consumer (RequestSPDU.Flags) shall be used as shown in Table 18.

Table 18 – Structure of RequestSPDU.Flags

Bit nr.

Identifier

Description

LSB =

Bit 0

CommunicationError

0: No error

1: An error was detected in the previous ResponseSPDU.

Bit 1

OperatorAckRequested

Used to inform the SafetyProvider that operator acknowledgment is requested.

Bit 2

FSV_Activated

Is used for conformance test of SafetyConsumer.SAPI.FSV_Activated

Bit 3......7

Reserved for future use

Always set to zero, not evaluated.

NOTE: CommunicationError can be used as a trigger, e.g. for a communication analysis tool.

Flags reserved for future use shall be set to zero by the SafetyConsumer and shall not be evaluated by the SafetyProvider.

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