ALARMS timestamp. From LOCAL PC or PLC??

[gianluca.bravetti]

Good morning,

i have a simple question... the alarm timestamp on the standard alarm panel is the LOCAL PC date & time or it's the PLC Date & TIME?

for example:
Alarm ON PLC date & time 24/09/2015 - 11:55:10:10
The wincc OA driver read the alarm on date & time 24/09/2015 - 11:55:50:15

On the alarm panel i'm going to have the first (plc) timestamp or the second (PC) timestamp ?

If i'm going to have the PC timestamp... can i show the PLC timestamp instead?

Thank you!

[Gertjan van Schijndel]

It depends on the used driver if it can use the timestamp of the plc and if the received timestamp is in the valid timerange.
The '_alert_hdl' config has a '_system_time' attribute, which contains the timestamp of the alert creation.

[gianluca.bravetti]

Thank you. i'm using a S7-TCP/IP driver with a S7-1500 PLC. on the AES TABLE CONFIGURATION when i add a column and choose DPA as the value i cannot see the _system_time attribute on the dropdown list. Maybe the attribute is not supported by the driver?

[gianluca.bravetti]

Problem solved with the TSPP protocol