Hello Everyone,

We'll be executing a DeltaV upgrade and we have a lot of simplex controllers that will go through a firmware upgrade and total download.

We have several parameters on each controller that should be restored to the pre-upgrade values. These are NOT parameters that were manually set by someone, so we cannot rely on the "upload" information. They are parameters automatically set by the code over the course of execution (hygienic states, unit statuses).

What is the best way to capture the pre-download values and restore them?

To capture the pre-download values we are considering Matrikon OPC Explorer, which can extract values into CSV.

NOT all of these parameters are part of history collection, so we cannot 100% rely on continuous historian.

To restore them we are considering these options:

1. DeltaV OPC Plugin (currently not installed)

2. Own PowerShell script (call OPC writes through some dll)

3. Hardcode everything into an ACT block (module1/param1 := value1; module2/param1 := value2, etc.)

4. Manual process, using watchit

I did not make any trials, but looks like neither Matrikon OPC Explorer, nor the DeltaV Excel plugin allow for "bulk writes" of hundreds of parameters due to a security limitation? Is anyone aware of a tool that allows this?

Consider this is a one-time activity, so we're not looking to implement any permanent configuration changes to accommodate this.