User manual

Publication 1760-UM001D-EN-P - September 2005
Draw a Circuit Diagram with Pico 4-57
Exclusive OR Circuit
This circuit is made in Pico using two series connections that are
combined to form a parallel connection (XOR).
XOR means that this circuit is an ‘Exclusive OR circuit’. Only if one
contact switches, can the coil be energized.
Motor Start/Stop Circuit
A combination of a series and parallel connection is used to wire a
latching circuit.
Latching is established by contact Q1 which is parallel to I1. If I1 is
actuated and reopened, the current flows via contact Q1 until I2 is
actuated.
10111
01111
11110
Logic Table
I1 I2
Q1
000
101
011
110
Logic Table
I1 Start I2 Stop Contact Q1 Coil Q1 Motor
000 0
010 0
111 1
011 1
100 0
Logic Table
I1 I2 I3 Q1 Q2
I1-I2-------{Q1
I1-I2
I1-I2-------{Q1
Q1
S1 make contact on I1
S2 break contact on I2