GE EPM 7300 Installation Manual page 35

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Annunciator Panel Wizard m onitors DDE Item s at Event Logger
Relay 1 Relay 2 Relay 3
(green) (green) (green)
Annunciator Panel Wizard
Annunciator Panel Wizard m onitors DDE Item s at Event Logger
Relay 1 Relay 2 Relay 3
(red) (green) (green)
Annunciator Panel Wizard
In the upper illustration, the Event Logger watches for any of the three events
configured to cause a change of state to the Trip 1 DDE Item. None of these three
events have occurred, so the status of the Trip 1 DDE Item is at OFF. The
Annunciator Panel wizard is monitoring the configured DDE Items at the Event
Logger, but all DDE Items are "OFF" so the Annunciator Panel displays green
indicator tiles.
In the lower illustration, the Event Logger has recorded a "Trip" event for the unit in
question, and changed the state of the Trip 1 DDE Item to "ON". The Annunciator
Panel wizard sees this change, and responds by changing the color of the annunciator
panel tile for Relay 1 to red.
DDE Item Nam e: Trip1
Status: O FF
Configured Events Received
Relay Tripped? NO
Error Condition? NO
O vervoltage Condition? NO
Event Logger
DDE Item Nam e: Trip1
Status: O N
Configured Events Received
Relay Tripped? YE S
Error Condition? NO
O vervoltage Condition? NO
Event Logger
Event Logger
tracks events
reported by
PM CS DDE
Server
Relay 1
PMCS
Relay 2
DDE Server
Relay 3
Event Logger
tracks events
reported by
PM CS DDE
Server
Relay 1
PMCS
Relay 2
DDE Server
Relay 3