Rockwell Automation 1760-xxxx Pico Controller User Manual - Manual (Page 72)

Publication 1760-UM001D-EN-P - September 2005
4-12 Draw a Circuit Diagram with Pico
Delete a Circuit Connection
Pico only removes empty circuit connections, i.e. those without
contacts or coils.
1. Delete all the contacts and relay coils from the circuit
connection.
2. Position the cursor on the first contact field of the empty circuit
connection.
3. Press Del.
The subsequent circuit connection(s) is ’pulled up’ and any existing
links between circuit connections are retained.
Use the Cursor Buttons as Inputs
With Pico, you can also use the four cursor buttons as soft inputs in
the circuit diagram.
The buttons are contacts P1 to P4 in the circuit diagram. The
P-Buttons can be activated and deactivated in the System menu.
The P-Buttons can also be used for testing circuits or manual
operation. These button functions are also useful for servicing and
commissioning purposes.
Example 1
A lamp at output relay Q1 is turned on and off via inputs I1 and I2 or
using cursor buttons up and down.
Example 2
Input ’I1’ is used to control output ’Q1’. Input I5 switches to Cursor
button mode and deactivates circuit connection I1 via M1.
IMPORTANT
The P-Buttons are only recognized as switch contacts
in the Status menu display, and not in the circuit
diagram display.
P2
P3
P4
P1
I1---------SQ1
P2
I2---------RQ1
P4
I5---------{M1
I1-M1------{Q1
P1-M1