Defining same alarm for two process sections using a DIC. How to do implement..
I don't know how to proceed with this one. I've been asked to define the same alarm for two distinct process sections. Initially, the alarm was defined for process section 1. Now the operators want it for process section 2 in addition.
The alarm was originally defined in a data block corresponding to the physical input, i.e., DI800xxx, and is set to process section 1. To enable the same alarm for process section 2, I need to define an extra dummy tag by using a DIC.
This is where I'm at. I don't know how to actually implement this using the online builder. The main problem is how to add the DIC. Configuring it afterwards shouldn't be a problem.
Any tips on this appreciated.
For those of you who might ponder on a similar issue:
One solution is simply to define a new DB of type DIC. Give it a proper name and write the desired real tag (in this case, the DI800xxx) value to the calc_value of the DIC using the standard move block with 1 input. To do this online one may use the following commands:
-IS to insert the move block
-CRDB to create the DIC data base
-C to connect the move block input and output
After defining the DIC configuration for the alarm in question the task is complete. Moreover, to transfer the new tag from the DIC to a 450 OS is trivial. However, using this tag for a new alarm in 800xA requires a upload which is not as straightforward.