same, the last package is discarded. The PRP communication is based on the so called
duo driver concept.
The PRPSTATUS function block supervise the redundant communication on the two
channels. If no data package has been received on one (or both) channels within the
last 10 s, the output PRP-A LINK and/or PRP-B LINK is set to 0 which indicates an
error.
Switch A Switch B
1 2
Data
Data
Data
Data
=IEC09000758=3=en=Original.vsd
IED
Configuration
PRP
PRPSTATUS
1 2
OEM
AB CD
Duo
Redundancy
Supervision
Station Control System
IEC09000758 V3 EN
Figure 465: Redundant station bus
1MRK502052-UEN B Section 18
Station communication
1001
Technical manual
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