We need to acknowledge alerts from script with additional information in _add_value_7 and _add_value_8. We use function alertSetWait for this (ACK_bug.ctl). It was noticed that in this case there is a memory leak on the event manager. I attached project for demonstration. 1. Run the ACK_bug.ctl scri...

Good day. We have problems with the request to the OPC HDA server with the "Bounds"option. The HDA server WinCC needs to return the two correct values, but returns null values as "bad." Found problem with clients: WinCC OA OPC HDA Client, Matrikon OPC HDA Explorer. Screenshots of...

How many datapoints are defined for the DP type eRemont2?

As I wrote above, just 1 datapoint. And this DP type is not used in other DP types as nested.

Can you observe the same behaviour in another system?

Yes, we tested this query on different projects, but not with WinCC OA 3.16

1.png 1.png We have dp type "eRemont2" with only one 1 dp without aliases. "Select alert" from 1 dp takes 1,7 seconds if we use alias filter and don't find alias. SELECT ALERT '_alert_hdl.._ack_state', '_alert_hdl.._ack_time', '_alert_hdl.._add_value_7', '_alert_hdl.._add_value_...

There is no automatism available which sets the dp element to retrieve historical data. You can implement your own script which performs the following steps -- detect when the connection is lost -- detect when the connection is reestablished -- encode the information and write it to the dp element ...

Historical access is supported by server and I can retrieve data by sending command thru internal datapoint (DPT is _OPCUAServer) For example, Connection to the server was lost between 2019.03.04 19:51:09.000 and 2019.03.04 19:52:10.000. I write command into _OPCUAServerDPname.Command.HistoryRead an...

Hello, I have problem with automatic retrieving data from the OPC UA server via WinCC OA OPC UA client for a time interval in which the connection to the server was lost. WinCC OA help: "Writing the data to data point element with appropriate peripheral address: This allows to automatically ins...

Thanks for the answer.
We already tried to set different values for connection timeout and use different config entries for the iec section, but did not reach the goal. We managed to make the switching time less than 30 seconds but much longer than necessary (1 second).

<t>Hello.<br/> <br/> Switching to reserve connection of the IEC104 driver takes about 30 seconds. Is it possible to reduce this time to 1 second?<br/> <br/> The configuration of the stand is as follows:<br/> 1. There is an IEC104 connection with two connections.<br/> 2. The connection works in a red...

Thanks for reply.
Will it be fixed in 3.15 or I need handle it in code?