Deif PPM 300 - Page 128

1
Controller Controller Controller Controller Controller Controller
1 2 1 2 1 2
1 2 1 2
1 2
2 3 4 5 6
PCM PCM PCM PCM PCM PCM
PSM PSM PSM PSM PSM PSM
Redundant connection to SCADA or AMS
The DEIF network rings can be connected to a SCADA server, or an alarm monitoring system (AMS), using a redundant connection
to two different controllers. This requires a switch that supports and has enabled Rapid Spanning Tree Protocol (RSTP).
A SCADA server example is shown in the following diagram:
Switch
(RSTP)
SCADA
Server
Controller
Controller
Controller
Controller
1 2
4 5
1 2
4 5
1 2
4 5
1 2
4 5
DEIF network
Switch
SCADA
PCM
PCM
PCM
PCM
PSM
PSM
PSM
PSM
INSTALLATION INSTRUCTIONS 4189340909I UK Page 128 of 144