User manual

Publication 1760-UM001A-EN-P
Drawing a Circuit Diagram with Pico 4-43
Count Up Counter
The count up counter keeps track of a given number of events. Once its preset
number of counts is reached, the counter energizes an output. This can be used for
keeping track of reject parts. Once the reject parts bin contains 20 parts, the bin is
emptied by energizing an output. The counter is reset by a second input.
Each time I1 is energized, counter C1 adds one to its counter. I1 must be
de-energized before C1 recognizes another count. When I1 has been energized 20
times, C1 turns on output Q1. When input I2 is energized, the C1 counter is reset
by using the reset instruction (RC1).
4x Shift Register
You can use a shift register for storing an item of information, e.g. sorting parts into
good and bad; two, three, or four transport steps further on.
A shift pulse and the value (0 or 1) to be shifted are needed for the shift register.
The shift register's Reset input is used to clear any values that are no longer needed.
The values in the shift register pass through the register in the following order.
1st, 2nd, 3rd, 4th storage position.
Block diagram for the 4x shift register:
I1---------CC1
C1---------{Q1
DIR
CNT
RES
C1
{
+
I2---------RC1
{
0020
Pulse Value Reset