Working with contacts
and relays
135
1SVC 440 795 M1100
X Press ALT to switch to Connect mode.
X Use úí to move the diagonal arrow between the contact
fields and coil fields and
ÍÚ to move between rungs.
X Press ALT to leave Connect mode.
The display system will leave the mode automatically when
you move the diagonal arrow onto a contact field or coil field
which has already been assigned.
Never work backwards. You will learn why wiring backwards
does not work in section “Effects on the creation of the
circuit diagram”, page 372.
Figure: 79: Circuit diagram with five contacts, invalid
When wiring more than four contacts in series, use one of
the 96 M marker relays.
Figure: 80: Circuit diagram with M marker relay
Deleting connections
X Move the cursor onto the contact field or coil field to the
right of the connection that you want to delete. Press ALT
to switch to Connect mode.
X Press DEL.
The display system will delete a connection. Closed adjacent
connections will be retained.
h
In a rung, the display system automatically connects
contacts and the terminal to the relay coil if there are no
empty fields in-between.
I 01----Q 04----i 03--o
z---------------k
h-I 02----I 04-----------S Q 02
I 01----Q 04----i 03-----------S M 01
I 02----I 04----M 01-----------S Q 02
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