Siemens SIMATIC S7-200 Manuale - Pagina 32

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More exercises

5.1 First program modification

5.1.2

Inserting a logic gate

If you want to connect a further normally-open contact for input I0.2 in series between

normally-open contact I0.0 and coil Q0.0 (i.e. insert an AND link between I0.0 and I0.2),

you first need to select a valid location to put the new contact.

Click the next element to the right of the

insert point. In this case, put the selector box

on coil Q0.0.

The insert point will be to the left of the

selector box.

Click the contact button in the tool bar or

press the corresponding function key.

Select the type of contact from the drop list.

Choose top item of the list. This is the

normally-open contact.

Getting Started - Beginners

Training Documents, 07/2007, A5E01031470B