EICS
Member
[FONT="]I have been requested to code an operator set point entry check as follows. This may be simple but has me baffled at present.[/FONT]
[FONT="] [/FONT]
[FONT="]control system is compactlogix with 2 Panelview Plus 1000 HMI's ( one local and one remote location either HMI can control) - and this is where i can see an issue with confirmation code with 2 HMI's and the limited functionality in FTV compared to a SCADA application and i have not done something in FTV like this before.[/FONT]
[FONT="] [/FONT]
[FONT="]Application is a fan which needs to run over its complete range 0 - 1500rpm[/FONT]
[FONT="] [/FONT]
[FONT="]One operator made a mistake the other day and entered a set point as 90 instead of 900 rpm. This caused a shutdown. [/FONT]
[FONT="]I cannot set a low limit as i previously mentioned it needs to run over the complete range[/FONT][FONT="] but they do want a check made to confirm with yes/no selection if operator sets less than 900RPM[/FONT]
[FONT="] [/FONT]
[FONT="]So here is what has been requested.[/FONT]
[FONT="] [/FONT]
[FONT="]- Operator sets a speed above 900rpm the SP change is made immediately[/FONT]
[FONT="]- operator sets a speed below 900rpm then a message window "Confirm Set point Change" appears with yes/no options. Yes allows the change and no cancels operation using the original set point.[/FONT]
[FONT="] [/FONT]
[FONT="]I can do this easily on one HMI but i am thinking with my concept how do i close the message windowon the other HMIthat operator is not in front of?[/FONT]
[FONT="] [/FONT]
[FONT="]control system is compactlogix with 2 Panelview Plus 1000 HMI's ( one local and one remote location either HMI can control) - and this is where i can see an issue with confirmation code with 2 HMI's and the limited functionality in FTV compared to a SCADA application and i have not done something in FTV like this before.[/FONT]
[FONT="] [/FONT]
[FONT="]Application is a fan which needs to run over its complete range 0 - 1500rpm[/FONT]
[FONT="] [/FONT]
[FONT="]One operator made a mistake the other day and entered a set point as 90 instead of 900 rpm. This caused a shutdown. [/FONT]
[FONT="]I cannot set a low limit as i previously mentioned it needs to run over the complete range[/FONT][FONT="] but they do want a check made to confirm with yes/no selection if operator sets less than 900RPM[/FONT]
[FONT="] [/FONT]
[FONT="]So here is what has been requested.[/FONT]
[FONT="] [/FONT]
[FONT="]- Operator sets a speed above 900rpm the SP change is made immediately[/FONT]
[FONT="]- operator sets a speed below 900rpm then a message window "Confirm Set point Change" appears with yes/no options. Yes allows the change and no cancels operation using the original set point.[/FONT]
[FONT="] [/FONT]
[FONT="]I can do this easily on one HMI but i am thinking with my concept how do i close the message windowon the other HMIthat operator is not in front of?[/FONT]