8.4 Message system
Configuration
Maximum
Configurable messages per server/single-user station 150 000
Process tags per message line 10
User text blocks per message line 10
Message classes (incl. system message classes) 18
Message types per message class 16
Message priorities 17 (0...16)
Runtime
The performance data can be limited by system resources.
Maximum
Messages per message archive No limit
Messages per short-term archive list 1 000
Messages per long-term archive list 1 000
1)
Messages per message window 5 000
2)
Continuous message load without loss (single-user station/server) 10/sec
Message surge (single-user station/server) 2 000/10 sec every 5 min
3)
1) On single-user station or server or on client, per server or per redundant server pair, if
"LongTimeArchiveConsistency" is set to "no". On single-user station, server, client or
redundant server pair, if "LongTimeArchiveConsistency" is set to "yes".
2) On single-user station or server or on client, per server or per redundant server pair.
3) If the interval to the next message surge is under five minutes, messages may be lost.
Note
The message overload and continuous message surge can be created simultaneously on a
single-user station or server.
Performance Data
8.4 Message system
WinCC: General information and installation
212 System Manual, 02/2017, A5E40840020-AA
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