Siemens FC18 Series Operating Manual page 67

● "@N": Union alarm in a group, 2≤N≤ total device amount;
Example: 01.0001@2=01.0004; indicates that any 2 devices in group 01.0001 alarm can activate group 01.0004.
Remark: when adding /deleting device in a group, the logic expression needs to be verified.
●When a logic expression need to activate more groups (output) simultaneously, use "," to separate;
Example: (01.0001+01.0002)*01.0003=01.0004, 01.0005; indicates that any group of 01.0001, 01.0002 and
01.0003 simultaneously alarm can activate group 01.0004 and 01.0005.
3. Interlocking across controllers
Just directly input addresses of groups in logic expression;
Example: 01.0001+02.0001=01.0002, 02.0002;
Operating Manual of FC18 Controller
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