ABB RELION 670 Series Technical Manual page 1128

Section 18
Station communication
18.4.7.5 Monitored data
Table 822: PRPSTATUS Monitored data
Name
AB Beh
CD Beh
PRP Beh
18.4.7.6 Principle of operation
The communication is performed in parallel, that is the same data package is transmitted on both
channels simultaneously. The received package identity from one channel is compared with data
package identity from the other channel, if they are the same, the last package is discarded.
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.
1122
Type Values (Range)
INTEGER 2=Blocked
3=Test
4=Test blocked
5=Off
1=On
INTEGER 1=On
2=Blocked
3=Test
4=Test blocked
5=Off
INTEGER 2=Blocked
3=Test
4=Test blocked
5=Off
1=On
Unit Description
- AB Link Beh
- CD Link Beh
- PRP Beh
1MRK 502 066-UUS B
PID-4074-MONITOREDDATA v4
GUID-545BD854-36AA-4606-B79B-A5FF73B1A4CB v3.1.1
Technical manual