DRS and DPT/DP sync

[NikolayLevchenko]

Hi all,

I've set up a project to start development. This project has redundancy and DRS (so I have 4 servers). So far so good.

Since we are at the development stage of the project, we are constantly adding/modifying/deleting DPT's, DP's, configs, etc.

Originally I thought that I can configure the system so that any changes to DPT's/DP's that we do on the Primary system would be automatically synchronised to the Secondary system. Unfortunately, after reading the help and poking around a little bit I still struggle to make this work.
Step 4 of the DRS config (Parametrization) seems to be what I am looking for. But after some experiments I still have 2 issues:
1. Sync doesn't delete DP's when they are deleted from the PSS. Help file seems to mention that but can someone confirm that this is indeed the case? This would make this sync process not very useful.
2. I can't seem to add any non-internal datapoint types, this prevents me from syncing any of my "project-specific" datapoint types (pumps, valves, ertc.). Is that intentional?

[Gertjan van Schijndel]

The DRS synchronization has been designed to synchronize a system in a production state.

1. The parameterization synchronization uses ascii im- & export to sync the parameterization. The ascii import does have an option to delete datapoints.
2. The online values synchronization is the intended synchronization method for project-specific datapoints.

[leoknipp]

With an ASCII import (format V1/V2) datapoints cannot be deleted.
A deletion of datapoints is only possible if you are using the ASCII format V3/V4. This format can only be used for datapoint types where a master datapoint is configured.
The DRS synchronisation is using ASCII files in format V1.

An automatic function to delete datapoints in the other system is not implemented in the DRS system as it is not possible to get the information when a datapoint is deleted. There is no standard functionality available at the moment to react on changes in the data model (creation/deletion/renaming of datapoints).

In the upcoming version 3.16 there will be a new function available called sysConnect() which can be used for different tasks on system level, e.g. get the information when a datapoint is created.
In our internal database I created a task to enhance the DRS functionality to delete datapoints in the other system. When this will be implemented is not defined right now.

Best Regards
Leopold Knipp
Senior Support Specialist

[NikolayLevchenko]

Thank you for the explanations, Leopold