mrgees100peas
Member
Hi,
We have an application with a very peculiar problem with a multi-state button. In the button both the value and indicator are set to the same tag. When you push the button it also behaves as you would expect. When the button is pressed the state is toggled both in the hmi and plc. Yellow for 0 and green for 1. So far so good. HOWEVER!!!, if you toggle it to enable it, that is set it to a 1 (green) and then you change to a different screens, when you come back the button reverts back to the 0 (yellow) state. The PLC shows that the state is still a 1. We are having similar problems with other indicators too but not as consistently bad. Is as if the data is not updata/read from the PLC i.e refreshed. Also, this is a scada application. What could cause this problem?
P.S. we also tried changing the NEX STATE BASED ON parameter to both current state and value control options but, it did not made a difference.
We have an application with a very peculiar problem with a multi-state button. In the button both the value and indicator are set to the same tag. When you push the button it also behaves as you would expect. When the button is pressed the state is toggled both in the hmi and plc. Yellow for 0 and green for 1. So far so good. HOWEVER!!!, if you toggle it to enable it, that is set it to a 1 (green) and then you change to a different screens, when you come back the button reverts back to the 0 (yellow) state. The PLC shows that the state is still a 1. We are having similar problems with other indicators too but not as consistently bad. Is as if the data is not updata/read from the PLC i.e refreshed. Also, this is a scada application. What could cause this problem?
P.S. we also tried changing the NEX STATE BASED ON parameter to both current state and value control options but, it did not made a difference.