YOKOGAWA SMARTDAG+ GM10, User Manual, Page: 22 / 22

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Subscription Operation
Subscription is a function for managing data monitoring and event notification in OPC-UA
communication.
In OPC-UA communication, data-change and event notification can be achieved by creating
a group (subscription) on the server and registering items (MonitoredItem) in that group.
The GX/GP/GM subscription includes data change notification and the corresponding
message and filtering (subscription) functions.
Subscription Supported Functions
Group Sub Group Supported Function
Subscription Notification Data Change Notification
Max Subscription 3 (Subscription/Session)
Min Publish Interval 100 ms
Lifetime Count 3 to 300: Default 60
Max Keep Alive 1 to 10: Default 5
Priority 0
Publish Queue 5
Retransmission Queue 1
MonitoredItem Supported Functions
Group Sub Group Supported Function
MonitoredItem Max MonitoredItem GX20/GP20/GM10: 300 (MonitoredItem/Session)
GX10/GP10: 100 (MonitoredItem/Session)
Min Sampling Interval 100 ms
Monitoring Mode Disable
Sampling
Reporting
Filter Data Change Filter
Data Queue Size 1
Discard Policy True, False : Default True
Deadband Type None