Hi there.
I have created a memory tag “tAirFlow” composed of the next formula (tags):
{[.]Machine/Process/CoolerAirFlow_01}+{[.]Machine/Process/CoolerAirFlow_02}+{[.]Machine/Process/CoolerAirFlow_03}+{[.]Machine/Process/CoolerAirFlow_04}+{[.]Machine/Process/CoolerAirFlow_05}+{[.]Machine/Process/CoolerAirFlow_06}+{[.]Machine/Process/CoolerAirFlow_07}
When machine is disconnected of the network, tAirFlow = null. Is there a way to replace null value to zero automatically?. I need to use that tag for another arithmetic calculations.
Thanks in advance.