User manual

Publication 1760-UM001A-EN-P
4-6 Drawing a Circuit Diagram with Pico
Working with Contacts
and Relays
In Pico circuit diagrams, the switches, buttons, and relays of conventional relay
logic are connected using input contacts and relay coils.
First, specify which input and output terminals you wish to use in your circuit.
Depending on the model, Pico has 8 or 12 input terminals and 4 or 6 outputs. The
signal states at the input terminals are recorded in the circuit diagram using input
contacts I1 to I12. In the circuit diagram, the outputs are switched using output
relays Q1 to Q6.
Entering or Modifying the Contact or Relay
Define a contact in Pico via its name and number.
A relay is defined by its coil function, name and
number.
A full list of all the contacts and relays is given on page
4-3. Enter mode is used to modify the value of
contact fields and coil fields. The value to be modified
will flash. If the field or section is empty, Pico will
enter contact “I1” or the coil “{Q1”.
• Move the cursor using the buttons to a contact or coil field.
• Press Ok to switch to Enter mode.
• Use the left and right arrow keys to select the position you wish to change, or
press Ok to jump to the next position.
• Use the up and down arrow keys to modify the value of the position
I2----------{Q4
I3
S1
S2
CR1
M1
CR1
Connect S1 to Pico input terminal I2
Connect S2 to Pico input terminal I3
Connect load M1 to Pico output Q4
S1 or S2 switches on M1.
Pico Circuit Diagram
I 2
Contact
Name
Contact
Number
{ Q 4
Coil Function
Relay Name
Relay Number