V4.0.2 Firmware Update includes OPC-UA enhancements?

CODESYS
1

I was just reading the release notes on the latest EPIC firmware release v4.0.2 and saw this comment:

The default values for OPC UA client configurations have changed to allow more client and session connections while minimizing impact on performance.

I was wondering if anyone at Opto 22 could elaborate a little on this? What are the current limits and what were they changed to? Was this a CODESYS Runtime version update, or was it a configuration / code change within the EPIC firmware?

My clients use this OPC UA server extensively and if this firmware update could be a performance boost, I would certainly push priorities to get them updated…

Thanks!

2

We updated the codesys config file for OPC-UA client connections.

Here were the previous settings:

MaxClients Default 10
MaxChannels Default 60
MaxSessions Default 60
MaxRequests Default 1000
MaxSubscriptions Default 100
MaxMonitoriedItems Default 5000

Updated settings for v4.0.2:

MaxClients=20
MaxChannels=200
MaxSessions=200
MaxRequests=6000
MaxSubscriptions=500
MaxMonitoriedItems=9000
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