What could be causing this problem that the panel cant read the DB's after updating to V15?

I also have a connection problem between an S7-1200 PLC to a TP700 Comfort panel(1st.gen)

In TIA 15 I changed the CPU type from 1214 with version 3.0. to 1214 V4.2 because we changed the PLC. But then I had a problem with the data exchange between the panel and the PLC. The connection to the Panel is established but the panel can't access the Data blocks of the PLC. The memory bits however work. I couldn't make it work so I had to change back to the old PLC.

Does anyone know what could be causing this problem that the panel cant read the DB's after updating to V15?

Cheers

Aleix

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Split from Communication between HMI and PLC.

Hello.

If you mean the access level in the PLC configuration (Protection&Security -> Access level) I have it set at Full access. In the HMI column, all green ticks are present.

Hi,

If I understood right you don`t have any error?

Compiling ok?

Have you check connection line from HMI?

with best regards,

Heksu

Hello.

No there is no error, compiling doesn't output an error, in the HMI tags there are no red tags, in the connection view where the panel and PC connection is configured everything is ok. So I realy don't know what else I can do...

What do you mean connection line from the HMI? 

Cheers

(1)
How are your tags accessed? Absolute or symbolic? Preferred is symbolic.

(2)
Some DB tag attributes have been added since your original program. There are 3 attributes that can be set that influence the link to/from the HMI. See the attached picture.

Hello.

All DB's are accessed symbolically. And all entries in the DB have all ticks 

Cheers.

A 

(3)
Synchronising of tags:

(4)
PUT / GET access to the PLC. (see attached picture)