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Using OPC Data reader DLL getting exponenetial values
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Sandeep Veeravalli
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11/14/2023 - 04:26
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Actually when we are trying to connect through Opc Data Reader connect tags to Source system the data reader is getting only the Exponenetial value and due to this our tag calculations are not fulfilled. 

 

For example :  pulling the data from source system is receiving as 2.04E2 which is equal to 204.0 whereas the precise value is 204.7137.

 

please help us on this

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Randy Armstrong
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11/14/2023 - 04:53
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1) The value transmitted on the wire via OPC is an IEEE floating point value. The rendering of that value as a string is a choice made by the client that is not related to the value received.

2) It is not clear how you determined the precise value but if the client is rendering the value as a string incorrectly it may also be truncating the value.

I suggest you use a different client and see what you get.

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Sandeep Veeravalli
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11/14/2023 - 08:28
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Is it possible to setup a call with you for much clarity on this one?

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Randy Armstrong
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11/14/2023 - 09:12
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