To use the SUB Function
SUB(Tag1,Tag2,Tag3)
Tag1 - Tag2 - Tag3
SUB(Demo-influxdb/DEMO_01TI031.PV,Demo-influxdb/DEMO_01TI032.PV,Demo-influxdb/DEMO_01TI021.PV)
To use the SUB Function
SUB(Tag1,Tag2,Tag3)
Tag1 - Tag2 - Tag3
SUB(Demo-influxdb/DEMO_01TI031.PV,Demo-influxdb/DEMO_01TI032.PV,Demo-influxdb/DEMO_01TI021.PV)