Latching
2.3 Inserting a normally-closed contact
Getting Started - Advanced
Training Documents, 09/2007, A5E01469795B
17
2.3 Inserting a normally-closed contact
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Note: Press the insert key to toggle ON the
Overwrite (OVR) mode. Look at the Status bar on
the bottom-right corner of the STEP 7- Micro/Win
window to make sure the OVR mode is set.
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1. Click the mouse to mark the LAD
diagram position with the box cursor
that shows where the NC contact will
be placed.
2. Open the Bit Logic folder in the
Instruction Tree and double click the
NC contact symbol. The NC contact is
placed in the ladder diagram
3. Finally, enter the desired NC contact
bit address (I0.1, in this case). This is
done by selecting the address field with
a mouse click and then typing the
address.
4. Always terminate text field inputs by
pressing Enter.
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