Siemens Logo! Manual page 97

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Press
SF
Press OK.
The block of the first special function is shown:
Trg
Par
Select your block (off-delay, see the next figure), and then
press OK:
Before you press
'OK', this shows
the entry Trg
B1
R
Par
The B1 block previously connected to Q1 is automatically
connected to the uppermost input of the new block. Note
that you can only interconnect digital inputs with digital out-
puts or analog inputs with analog outputs. The 'old' block
will otherwise be lost.
The off-delay block has three inputs. At the top is the trig-
ger input (Trg) you use to start the off-delay time. In our
example, the OR block B1 triggers the off-delay. You reset
the time and the output with a signal at the reset input. Set
the off-delay time at parameter T of the input Par.
LOGO! Manual
A5E00380835-01
to select the SF list:
B
Q1
Q1
B2
Q1
Programming LOGO!
The SF list contains the special
function blocks.
When you select a special or basic function
block, LOGO! shows you the relevant func-
tion block. The solid square cursor is posi-
tioned on the block. Press B or Y to select
the required block.
The added block is assigned the block num-
ber B2. The cursor is positioned at the top
input of the added block.
89

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