APPENDIX B – Frequently Asked Questions OMRON
Page 272 Release 2.0
Q How does upgrading CX-Supervisor affect communications performance?
The graphs below show that this does not have an impact itself, which is not surprising as a
communications functions, and therefore performance, are governed by the communication
middleware: CX-Server. The graphs show:
• Upgrading CX-Supervisor does not affect the total number of Subscription points that can be
simultaneously read, which has remained more than 1000.
• Performance of instantaneous read and write is not significantly affected by the version of
CX-Supervisor.
• Updating CX-Supervisor does not affect how performance degrades when the system gets
busy.
Note: CX-Supervisor 1.2 and later do include automatic optimisations for writing array
elements that can yield substantial results, particularly with serial communications.
These performance improvements have been excluded from these results rather
than distort the true figures.
0
20
40
60
80
100
120
CX-S 1.0 CX-S 1.1 CX-S 1.2 (12) CX-S 1.22 (7)
Version
% of 1.0 Performance
Read
Write
Subscription
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