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Schneider Electric STBDRC3210K Digital Model - No Custom Bundle
Brand:Schneider Electric
UPC:Does not apply
Custom Bundle:No
Country/Region of Manufacture:France
Analog/Digital:Digital
Model: STBDRC3210K
There are many three aspects in PLC: switch, analog quantity, and
pulse quantity. As long as you understand the connection between
the three, you can proficiently master and use PLC.
1, In the switch
Switch, also known as logic, refers to having only two values, 0 or
1, 0N or OFF. It is a commonly used control, and controlling it is
an advantage of PLC and also a basic use of PLC.
The purpose of control in the switch is to cause the PLC to
generate corresponding switch output based on the current input
combination and historical input order in the switch, so that the
system can work in a certain order. So, sometimes also known as
sequential manipulation. And sequential control can be divided into
manual, semi-active, or active. There are three control principles
adopted: dispersion, convergence, and hybrid control.
2, Analog quantity
Analog quantity: Among the connected voltage, current, and other
signals, the analog signal is a signal that fluctuates continuously
with time, and after sampling and quantization, it becomes a
digital signal. There are many correct and incorrect electrical
quantities in the simulation, while PLC can only handle digital
quantities and electrical quantities. All conversions between them
require sensors to convert analog quantities into digital ones. If
this electrical quantity is not standardized, it needs to go
through a transmitter to convert the non-standard electrical
quality into standardized electrical signals, and there is also an
analog input unit (AD) to convert these standardized electrical
signals into digital signals; Analog output unit D/A) to replace
the digital quantity processed by PC with analog quantity
3, Pulse quantity
Pulse quantity is a number whose value is constantly changing
between 0 (low level) and 1 (high level). The number of times a
clock pulse is replaced and changed is called the frequency. The
control of pulse quantity is often used for angle control, distance
control, position control, etc. of stepper motors and servo motors.
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Linture Technology Co,. Ltd
Contact person: Vivian
E-mail: linture0319@163.com
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