I am looking for some help with displaying multiple messages for a plant alarm system that I am creating. I have attached for info. I have also added a log file to record all the plant alarms (hopefully I did that correctly). The amber screen indicates a remote plant alarm to where the logo will be located to make it visually obvious.

All alarms show perfectly, I am using a High signal with priority 0 to show the default message screen. I am not up to speed with FBD as I have hardly ever used it and it is a learning curve compared to ladder.

My problem is if two or more inputs are on at the same time, I want to have the logo scroll between the active alarms until they are cleared. I saw a file using shift registers to display multiple messages however I couldn't work out how to make it check for more than one input on at a time.

Any help would be much appreciated. I hope you understand what I am hoping to achieve.

The problem I may have is that one alarm is showing it would be reliant on a member of staff to press the buttons to look for a 2nd message, hence why I was thinking about it auto displaying the multiple messages if there is more than one.

Thanks for your quick responses.

Hi, that is correct. If there is a single alarm the program will work as per attached.

If there are two alarms active I want to display alarm 1 for say 3 seconds, then alarm 2, then back to alarm 1.

If there are three alarms active I want to display alarm 1 for say 3 seconds, then alarm 2 for 3 seconds, then alarm 3 for 3 seconds, then back to alarm 1. etc.

However I can't think how to code the two or more part.

Many thanks, that looks like my answer right there. I'll have a play with that.

Much appreciated and so much still to learn.

Andy.

Hello RossHall,

Attached your program with a new message text. If some alarm occurs, the screen 6 shows all plants and how of then is or are in alarm state.

@Dinos - thank you so much that is perfect and I will use that.

However, as per attached for the message texts how do you add the Input blocks etc. as I have tried and tried and can't work it out? Once I know it will help me greatly going forward.

Many Thanks,

Andy.

I have tweaked your new version  to use green background for no faults however during an alarm it will utilise the white background and each alarm must be acknowledged to be cleared. Result. I'm very happy. I hope others will find this a useful add-on.

Yes I did originally as I didn't know we could add Input blocks etc. onto the message texts as I have tried (and still don't know how to do it) but it wouldn't work that was why I thought the only way would be to scroll the windows.

Both solutions are great and I will incorporate them in other projects, however the latter one suits this specific application best. Apologies for any inconvenience caused.

Hello RossHall,

For I/O in the message text properties, follow these steps (see attachment):

1. Select a cell in the message grid. Select ON/OFF just above the message grid.

2. Select the input or output desidered from the menu which appears.

3. Select the I/O desidered from the menu which appears.

4. Type in the boxes whenever you want for when False and True states. Finalliy confirm with OK.

See attached.

Suggestions:

Alarms has to be in high priority. After open blocks, use open conectors. You can change the block high to a inverter in the entry "En" of message text (one less block used).

See you.

New question published by Shahjee is split to a separate thread with the subject Win CC Runtime to display the messages on one big TV.

Best regards
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