latched coils

This test case it part of the test suite proposed for new devices.

Test case ID: R0251
Language: LD

Code:

tests2/t0251.fbd
    <vars name="A" datatype="BOOL" init="1"/>
    <vars name="B" datatype="BOOL" init="0"/>
    <vars name="X" datatype="BOOL"/>
    <vars name="Y" datatype="BOOL"/>
    <vars name="Z" datatype="BOOL"/>
 (* graphical code omitted in this listing *)