MirrorBlockCommand state not used for LNs without direct process interface (sCtl28)
Same as 668 but only for ED 2.1.
The test case sCtl28 is designed to verify the functionality in figure 42 of IEC 61850-7-2:2010, regarding test/blocked but does not consider separation of function e.g. CSWI and XCBR.
The problem is that the CSWI should not be affected by the block in test/blocked or blocked, since there is no process interface from this LN. I.e. the CSWI should forward the command to the XCBR also when e.g. in test/blocked.
The result is that the CSWI should not enter the MirrorBlockedCommand state. This is similar and have the same root cause as "Redmine Issues #642" regarding sCtl29.
This leads to that the expected result in that test case sCtl28 is not correct for the non process LNs.
The proposal is to exclude the test sCtl28 with the same motivation as sCtl29.