usage of datapoint-groups in distributed systems

[leoknipp]

Hello,

if you are using datapoint groups in a distributed system you have to ensure that the datapoint-groups are synchronized between the systems. Otherwise you can get different results when making a query over distributed systems.
If a query is made the name for the internal _DpGroup-datapoint is used as a filter-criteria.

E.g.: distributed system with 2 systems
+++ System1 +++
-- dp-group-datapoint _DpGroup_0022
-- filter-settings for this group: dp-filter Exa*

+++ System2 +++
-- dp-group-datapoint _DpGroup_0022
-- filter-settings for this group: dp-filter _Ui*

-- a user-interface in System1 is starting a query using this group and the keyword REMOTE ALL to get data from all systems or REMOTE 'System2' + a query for the own system (without the REMOTE-keyword) to get data from a specific system and the own system

The result will look like this (all possible result are not listed in this example):
System1:ExampleDP_AlertHdl1.
System1:ExampleDP_AlertHdl2.
System1:ExampleDP_Arg1.
System2:_Ui_1
System2:_Ui_2
System2:_Ui_3

Best Regards
Leopold Knipp
Senior Support Specialist