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APPENDIX B – Frequently Asked Questions
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
120
100
80
60
40
20
0
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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.
CX-S 1.0
CX-S 1.1
CX-S 1.2 (12)
CX-S 1.22 (7)
Version
OMRON
Read
Write
Subscription
Release 2.0
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