Can I setup a PI tag to record the value coming out of a device even if the status of that device is Bad?
We have several mass flow meters that are used to charge liquids and then they are blown out with gas after the charge. The meters are setup with a slug flow density limit. If the density of material is below this limit, the meter outputs 0 flow rate and a status of bad to the DCS system. The slug flow limit is used to ensure the meter does not integrate the flow of compressed gas while the meter is blown out.
In our PI server the word "Bad" is recorded for both the flow rate and the density when the meter is empty. Once the meter fills with liquid the actual readings are recorded again. Recording a value of 0 flow and the actual measured density is important for us. Is there a tag configuration setting that would record the actual value coming out of the device at all times and ignores the device status?
Thank you