Differential calculation of the I/O points in the Zhongkong JX300 system
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I’m seeking help from everyone. For the JX300 control system, I want to determine the pressure difference; I plan to use a four-byte floating-point value to represent this difference. Does the range setting of the four-byte floating-point value affect the displayed difference? What should be the appropriate range setting? Automatic control instruments
I haven’t had much experience with the Central Control 300 system
In the Zhongkong JX300 system, if one wishes to display the difference between two pressure sensors using a four-byte floating-point value, the range setting will affect the accuracy of the displayed difference. The range should be set to cover the entire range of differences between the two pressure sensors, that is, from the possible minimum difference (which can be negative) to the possible maximum difference. If the range setting is too narrow, it may cause the displayed results to overflow or result in insufficient precision ； If it is set too wide, it may result in insufficient resolution, preventing the accurate display of small differences. Generally, the range setting should be determined based on the actual application scenario and the specifications of the pressure sensor. .
It has no impact; set it however you like. If you set it too low, the calculation will still be done.