Hi,

We want to show OPC variable with external timestamp in Zenon runtime, however, OPC driver is not listed in drivers which are taking care of status bits and data/time stamping. On the other words, when we receive a variable and it's corresponding time stamp separately in Zenon Editor via OPC driver, how it is possible to show this time stamp as an external timestamp.

This driver supports the external timestamps. So, we can use Zenon logic (straton) and allocate three variables got from OPC (the value of IO, date and time) in a single stratonng variable with this value and external timestamp. And finally in Zenon Runtime we show stratonng variables instead of directly OPC variables.

For achieving this goal, we have done the following steps:

1- Activated the setting "Allocate status flags for variables with embedded properties" in Zenon logic.

2- To mark that the time-stamp came from Zenon logic the driver sets Status bit RT_E (Real-time external) for the variable.

We expected to see the correct timestamp (for stratonng variable) in the event list, alarm list, variable diagnosis screen, historian, and etc., but unfortunately the local time (computer time) is shown in all of them not the time received from OPC. I would appreciate if you could help us with this issue.

Sincerely,

Zahra Sinaeefar