The Four Golden Rules For Operating Logo - Siemens LOGO! Series Manual

3.5

The four golden rules for operating LOGO!

Rule 1: Changing the operating mode
● You create the circuit program in programming mode. After power is on, and when the
● Timer and parameter values of an existing circuit program can be edited both in
● Select the 'Start' command on the main menu to set RUN mode.
● When the system is in RUN, you can return to parameter assignment mode by pressing
● When parameter assignment mode is open and you want to return to programming
For more details on operating modes, refer to the Appendix topic "LOGO! Menu structure
(Page 353)".
Note
The following applies to 0BA2 device versions and earlier:
• You can open programming mode by pressing + +OK.
• You set parameter assignment mode by pressing ESC+OK.
Rule 2: Outputs and inputs
● Always create your circuit program by working from the output to the input.
● You can connect an input to several outputs, but not the same output to several inputs.
● Within the same program path you may not connect an output to an upstream input. For
LOGO!
Manual, 04/2011, A5E03556174-01
display shows "No Program / Press ESC", press the ESC key to select programming
mode.
parameter assignment mode and in programming mode. During parameter assignment
LOGO! is in RUN mode; that is, it continues executing the circuit program (see the topic
"Configuring LOGO! (Page 287)"). To work in programming mode, you need to terminate
the circuit program by calling the "Stop" command.
the ESC key.
mode, select the "Stop" command from the parameter assignment menu, and confirm
"Stop Prg" prompt with "Yes". To do so, move the cursor to "Yes" and confirm with OK.
such internal recursions you should interconnect flags or outputs.
3.5 The four golden rules for operating LOGO!
Programming LOGO!
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