What is the operation cycle of the Yokogawa CS3000 controller?
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This post was last edited by jacob451 on 2011-3-30 at 12:30. The DCS tender specifications require that the maximum execution time for the processor modules used for analog control should not exceed 250ms, while the execution time for processors used in digital control should not exceed 100ms. However, Yokogawa claims that their processors cannot meet these requirements. Does anyone know the parameters of the CS3000 controller?
This post was last edited by zzllyp on 2011-3-30 at 19:42. The control cycle for various control and interlock logic circuits can be selected according to different requirements; the scanning cycles are 1000 milliseconds and 500 milliseconds respectively； High speed: 50 milliseconds, 100 milliseconds, 200 milliseconds, 500 milliseconds. Analog processing should be carried out within the basic period.
Can the scanning period be selected during configuration, independent of the hardware?
The scan rate for each channel can be selected; the faster the speed, the more resources it consumes.
It is better to determine the scanning cycle based on the process requirements; a one-size-fits-all approach isn’t very useful. Even for the requirement you mentioned, the Yokogawa system should be able to meet it, though too many high-speed scanning loops can result in an excessive load on the FCS
I agree with you; different processes require different scans
Good request for help; special attention! Thank you!!!