TIA Portal v13 alarms

Hi I have a DB of words for alarming which is an array of words, 0..65

I have 256 alarms which must be acknowledged in the PLC

Previously in WinCC Flex 2008 I used alarm word 33 bit 0 as the PLC ack for Alarm 1 and so on... so 0..32 was alarm words and 33..65 alarm ack words

but TIA portal shows this as red and the error message is pretty useless

Any suggestions?

Sorted

Helpful.

From memory, i think the ack bit has to be in the same alarm word as the trigger bit, but will check.

Rob

Hi I am ok now thanks

I'm sure you are. My point was that this is a forum where people can find solutions to many many technical problems. One method is to search previous posts and see how how others have overcome similar problems. Yours would be of very little use to anyone trying to sort the same problem you faced.

Rob

Hi I was using this solution because I wanted a PLC acknowledge bit due to the system having multiple HMI's (3) which can show the same alarms and any can acknowledge.

The issue I had was that I forgot to create an array tag at the HMI

So

Alarm DB (DB10) is a list of alarms/faults, Array [0..65] of type WORD

HMI Tag is an Array Of 65 Words

The important thing to remember is the big endian/little endian swap that is required

Some screenshots attached

Maybe not the 'perfect' method but works for me