Hello!

I have got a td 200 c panel and i would like to know if
there is some chanse to make a history for my alarms ?

Thank you and best regards

R G

Dear Visitor,

Unfortunately there is no built in diagnostic or message buffer
into the S7-200 available like in S7-300/400.

There are several ways how to solve that.
the library "Read/Write external eprom" was made the
fundament to enable such a feature for S7-200.

However, to get a quick solution you should use the built in
table functions.
You would have to associate a unique number to any alarm.

I attached a drawing how this could look like.
This solution wouldn?t have timestamp capabilities.

At least you need a way how to display the history
messages.
If you like to show them at TD200 you should copy always
the associated message to the current table value.

The user could use the up/down arrow to browse within
the history buffer.

best regards
Damir