User Manual

Programming LOGO!
3.7 Writing and starting the circuit program
LOGO!
84 Manual, 06/2014, A5E33039675
When you select a special or basic function block, LOGO! shows you the relevant function
block and positions the solid square cursor on the block. Press
OK
to enter the editing mode,
and the cursor appears as a flashing solid square. Press
or to select the required block.
Select your block (off-delay, see the next figure), and then press
OK
:
Press to move the cursor to Trg, and then press
OK
.
Press
or to select B1 and confirm with
OK
.
LOGO! automatically connects the uppermost input of the new block to B1, which you had
previously connected to Q1. Note that you can only interconnect digital inputs with digital
outputs or analog inputs with analog outputs. LOGO! otherwise removes the 'old' block.
The off-delay block has two inputs and a parameter. At the top is the trigger 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 (R). You set the off-delay time at
parameter T of the Par.
Assigning block parameters
Now you set the off-delay time T:
1. Move the cursor to
Par
: Press
2. Switch to editing mode: Press
OK
LOGO! shows the parameters in the parameter assignment window:
To change the time value, follow these steps:
1. Move the cursor to the time value: Press
2. Switch to editing mode: Press
OK