ServiceHeader (STRUCT)

TYPE ServiceHeader : STRUCT

InOut:

Name	Type	Initial	Comment
HeaderTag	UINT	Constants.HeaderTagStandard	Qualified Constants.<…> but this leads to compile errors
HeaderSize	UINT	UDINT_TO_UINT((SIZEOF(THIS^) - 4))	size from service group on!
ServiceGroup	UINT
Service	UINT
DeviceSessionId	UDINT
ServiceLength	UDINT		size of the service wihtout the header
CustomerId	UINT	0	0 -> 3S
Reserved	UINT	0	must be 0