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We are using Profibus network for our under construction process plant.
The initial DCS system contract has been on some IO assumption of 6000 Tags.
Now extracting the required signals from devices using Profibus, we have 18000 number of soft AI and soft DI considering the process values and status bits.
Our system integrator now claims each piece of information received via Profibus, either the status bit or process value, is considered a separate Tag.
We have the argument that each word can be considered as a bunch of 16 bits, each representing a status flag so we have only 1 Tag instead of 16.
Please let me know either we are correct or our system integrator. In oter word is each bit received via Profibus considered a standalone tag?
The initial DCS system contract has been on some IO assumption of 6000 Tags.
Now extracting the required signals from devices using Profibus, we have 18000 number of soft AI and soft DI considering the process values and status bits.
Our system integrator now claims each piece of information received via Profibus, either the status bit or process value, is considered a separate Tag.
We have the argument that each word can be considered as a bunch of 16 bits, each representing a status flag so we have only 1 Tag instead of 16.
Please let me know either we are correct or our system integrator. In oter word is each bit received via Profibus considered a standalone tag?