Conflict RulesRules that define the relationships between operational conditions/types within an operational group.
The operational conditions and types that are compatible with one another are defined within an operational group (for example, mechanical or electrical). These must therefore be assigned to the operational groups before the conflict rules are defined.
The system uses conflict rules to compare the current operational condition or type with the one to be switched, and displays the result on the screen. Conflict rules can be general or user-defined.
General Conflict Rules
No definitions are required. The system assumes that a combination of different operational types always leads to a conflict. The check produces the following results:
N = Note
E = Error message
Note
The operational type cannot be overwritten.
Operational conditions do not have any effect on the conflict verification.
It is not possible to define asymmetrical rules.
User-Defined Conflict Rules
If conflict rules have been defined in Customizing, then the system differentiates between the following results in a check:
N = Note
W = Warning
E = Error message
Note
The operational type can be overwritten.
Operational conditions do have an effect on the conflict verification.
It is possible to define asymmetrical rules.
The system interprets missing rules as errors.
Example of general conflict rules:
If the operational conditions CLOSED
and LOCKED
belong to the same operational type, then their combination does not lead to a conflict.
Example of user-defined conflict rules:
For example, a user-defined conflict rule states that the operational condition LOCKED
can follow the operational condition CLOSED
, but the operational condition CLOSED
is not allowed to follow the operational condition LOCKED
.
Example calculation of the number of user-defined conflict rules:
In an operational group E (= electrical
), there are two operational conditions ON
and OFF
, each with three operational types RED, YELLOW
and WHITE
. There are therefore six possible combinations of operational condition and operational type. When the rules are created, all of these combinations can also be reversed, so that a total of 36 (= 6 x 6) conflict rules are defined in Customizing.