User manual

Publication 1760-UM001A-EN-P
4-4 Drawing a Circuit Diagram with Pico
Relays
Pico has nine different types of relay for use in a circuit diagram.
The switching behavior of these relays is set using coil functions and parameters.
The coil functions and parameters are listed with the description of each function
relay type.
The options for setting output and marker relays are listed with the description of
each coil function.
Circuit Diagram Display
In the circuit diagram, contacts and coils are connected from left to right - from
contact to coil. The circuit diagram is created on a hidden grid containing contact
fields, coil fields and circuit connections. It is then wired with connections.
Insert relay contacts in the three contact fields. The first contact field is
automatically connected to the voltage.
Insert the relay coil to be controlled together with its function and designation in
the coil field.
Every line in the circuit diagram forms a circuit connection or ladder logic rung.
1760-L12xxx enables 41 circuit connections/rungs and 1760-L18AWA allows 121.
Relay type Pico
symbol
1760-L12xxx 1760-L18AWA Coil
function
Parameter
Outputs Q Q1 to Q4 Q1 to Q6 X –
Internal Marker Bits M M1 to M16 M1 to M16 X –
Counters C C1 to C8 C1 to C8 X X
Timers T T1 to T8 T1 to T8 X X
Real Time Clock – X
Analog Setpoint Compare A
A1 to A8
(1)
(1) This applies only to the 1760-L12BWB and 1760-L12BWB-NC.
––X
Text Display
(2)
(2) This applies only to the 1760-L18AWA.
D– D1 to D8XX
Jump to Label
(2)
:– :1 to :8X–
Internal Marker Bit
(2)
S – S1 to S8 X –
1 to 4 1 to 4