Event list of 800xA
Hi all,
Our system ( 800xA ) connect with FMC-Technip via OPC. The FMC side writes data on some AIC database of AC450. Sometime we got a lot of event in event list. You can refer to attached for more detail. The event pop up a lot , and it stops when the data of FMC side is steady How can I stop these event?
Our system ( 800xA ) connect with FMC-Technip via OPC. The FMC side writes data on some AIC database of AC450. Sometime we got a lot of event in event list. You can refer to attached for more detail. The event pop up a lot , and it stops when the data of FMC side is steady How can I stop these event?
Asked 2 months ago
Answers
0
Probably due to OPC DA write overload.
1) Only MB300 DAT object type is supported for external writers. Do not use other object types. Data can easily be MOVE(x) from DAT to other object types by a PC program.
2) Available resources (mostly CPU time in controller) may cap capacity already at a low write rate (Advant/Master PLCs are tuned for occasional and man-made writes from a handful of operator consoles only). Use AC 800M, CI855 (MB300 module) and ”DataSet” for higher throughput. AC 800M accept higher write frequency than AC400.
1) Only MB300 DAT object type is supported for external writers. Do not use other object types. Data can easily be MOVE(x) from DAT to other object types by a PC program.
2) Available resources (mostly CPU time in controller) may cap capacity already at a low write rate (Advant/Master PLCs are tuned for occasional and man-made writes from a handful of operator consoles only). Use AC 800M, CI855 (MB300 module) and ”DataSet” for higher throughput. AC 800M accept higher write frequency than AC400.
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