Rockwell Automation AADvance Controller OPC Portal Server - Manual (Page 11)

Document: 553701
(ICSTT-RM407_EN_P) Issue: 03:
1-3
OPC Data Access Interface OPC Data Access Interface OPC Data Access Interface OPC Data Access Interface
The OPC Data Access interface allows multiple Data Access clients to access any
AADvance controller tag.
A Data Access client can do the following:
Query the value of a specific tag.
Subscribe to a tag to receive updates when the value of that tag changes.
Change the value of a tag in an AADvance controller.
The OPC Portal Server conforms to version 3.00 of the Data Access Custom Interface
Standard published by the OPC Foundation.
OPC Alarm and Event Interface OPC Alarm and Event Interface OPC Alarm and Event Interface OPC Alarm and Event Interface
The OPC Alarm and Event interface provides a source of alarm and event information
to clients. Each time an event occurs, the OPC Portal Server informs the client of the
event. The information provided by the OPC Portal Server includes the tag name,
value and time, which the client can use for example to trigger an alarm or record in
an event log.
OPC Alarm and Event clients subscribe to the server by controller name and receive
all events originating from subscribed controllers.
SOE Conditions Reported BY the OPC Server SOE Conditions Reported BY the OPC Server SOE Conditions Reported BY the OPC Server SOE Conditions Reported BY the OPC Server
Condition VA Ref Variable VA Ref Variable Value
SOE_Condition_Falling (0) VA of SOE'ed
Varaible VA of reference
variable or VA of
SOE'ed variable if no
reference variable
configured Value of reference
variable, or value of
variable being SOE'ed
if no reference
variable configured
SOE_Condition_Rising (1) VA SOE'ed VA of reference
variable, or VA of
SOE'ed variable if no
reference variable
configured Value of reference
variable, or value of
variable being SOE'ed
if no reference
configured
SOE_Condition_Unlock (2) VA of Variable
being unlocked VA of Variable being
unlocked Value of Variable being
unlocked
SOE_Condition_Lock (3) VA of Variable
being locked VA of Variable being
locked Value of Variable being
locked
SOE_Condition_Force (4) VA of Variable
being forced VA of Variable being
forced Value of Variable being
forced
SOE_Condition_Div_By_Zero
(5) VA of divisor -
value that is 0 POU number 0
SOE_Condition_Max_
Pou_exe_Time (6) 0 0 0
SOE_Condition_Call_ Depth
(7) 0 0 0