Button visibility on PV 1000 Plus

Hi All,

I have four HMI buttons.

When one of these buttons is pressed I would like the other 3 to disappear.
I can make it work if Button 1 is pressed, then Button 2 will disappear but I need to add the 3 expressions to each HMI button.

(Working on Button 2 Visibility)
This is what I entered to start with:

• If{[topsidecoater]_HMI_b_LoopSelectionPB[0]} =0 then 1 else 0

How do I add if button 3 and 4 are pressed into this same expression.

Please see a word document attached for clarity.

Thanks.

irinjia

Button 1 Invisible
({[PLC_Topic]PB_2_Pressed} OR {[PLC_Topic]PB_3_Pressed} OR {[PLC_Topic]PB_4_Pressed})

Button 2 Invisible
({[PLC_Topic]PB_1_Pressed} OR {[PLC_Topic]PB_3_Pressed} OR {[PLC_Topic]PB_4_Pressed})

Button 3 Invisible
({[PLC_Topic]PB_1_Pressed} OR {[PLC_Topic]PB_2_Pressed} OR {[PLC_Topic]PB_4_Pressed})

Button 4 Invisible
({[PLC_Topic]PB_1_Pressed} OR {[PLC_Topic]PB_2_Pressed} OR {[PLC_Topic]PB_3_Pressed})

Thanks chopin,

Just testing it now and its works great.
Thanks for your help.

Regards,
irinjia