Dear Experts,

I am having the same trouble. Like we do not have any backups and we tried to get the backup and did these setps

1. Try to upload the program backup with SIMATIC manager and got the pop up that PLC program is created with a newer version.

2. Tried to upload the PLC program backup with TIA V13 SP2 and failed with the error of version.

3. Tried to upload the PLC program backup with TIA V14 SP1 Update 10 and successfully uploaded. and go online and got all the program with green indications without any discrepancy.But the problem is when we tried to open a block like OB1 the monitoring block option is grey and unable to monitor block.

4.Then upload the PLC program with TIA V15 TIA V15.1 TIA V17 and successfully uploaded the program with all the versions but still the issue is same. Moreover when we compare online and offline blocks there is no changing available.

When we compile any block or rebuild all the blocks then all the blocks show the discrepancy. Pictures are attached for your consideration.

Please help us to find the solution ASAP.

Waiting for your swift reply.

Thanks in advance.

Kashir.

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Split from Not getting a monitor option after successfully connected online.