Master.Input (METH)ΒΆ

METHOD Input : SAFEBOOL

Function for temporal monitoring and to handle a received FSoE PDU. The return value of the function indicates if the FB state has changed. The input parameter S_pbyRecvFrame is the reference to a received FSoE PDU with the initialized length S_uiRecvFrameLen. If no new FSoE PDU has been received since the last call, only the check for a timeout regarding the FSoE communication is performed. S_pbyRecvFrame can either be NULL or point to the last FSoE PDU received. If an timeout error has occurred the transition FSOETRANSITION.TO_RESET is set according to the standard with the local error message FSOEDIAG.WDEXPIRED and the function returns with TRUE according to the FB state change. If no timeout error has occurred, the transferred FSoE PDU is checked FOR a change compared to the last call. In case of an unchanged FSoE PDU (no new FSoE PDU received) the state of the FB is unchanged and the function returns with FALSE. In the case of a changed FSoE PDU this is evaluated and a corresponding transition is set according to the protocol specification and the function returns with TRUE. If the function returns with TRUE, the output parameters S_byDeviceError and S_udiResponseTimeMS are updated. This function shall be called cyclically so that a temporal monitoring of the FSoE communication is ensured.

InOut:

Scope

Name

Type

Comment

Return

Input

BOOL

Input

S_pbyRecvFrame

POINTER TO SAFEBYTE

Pointer to the the received FSoE frame