A

AND

STL

Combines the value of the operand and the RLO with the operation ‘And’ and stores the result in RLO. If the RLO is scanned (abgefragt??) before the value of the operand will be transfered into the RLO without logic operation (Verknüpfung??).

FBD

The output of the And-block will be ‘1’ if all outputs are ‘1’. The And-block is created by the symbol ‘&’ or by the list and selection of ‘And’.

LAD

Here the AND-operation is created by series connection of several contacts. The whole chain will only conduct current if all contacts are closed. A new contact is created by the symbol or by the list and selection of ‘And’.

See also:

AN

A(

AN(

O

ON

O(

ON(

X

XN

X(

XN(

)

List of operations