Siemens PLC controller

NegotiableUpdate on 03/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Siemens PLC controllers are suitable for automation of detection, monitoring, and control in various industries and occasions. The powerful features of the S7-200 series enable it to achieve complex control functions whether operating independently or connected into a network. Therefore, the S7-200 series has a * performance/price ratio.

Product Details

Siemens PLC controllerFeatures:

CPU unit design

Integrated 24V load power supply: can be directly connected to sensors and transmitters (actuators), CPU 221， 222 has an output of 180mA, while CPU 224 and CPU 226 output 280400mA respectively. It can be used as a load power supply.

Different types of devices

CPUs 221~226 each have two types of CPUs with different power supply voltages and control voltages.

Local digital input/output points

CPU 221 has 6 input points and 4 output points, CPU 222 has 8 input points and 6 output points, and CPU 224 has 14 input points and 10 output points. CPU 226 has 24 input points and 16 output points.

Interrupt input

Allow for rapid response to the rising edge of process signals.

High-speed counter

CPU 221/222

4 high-speed counters (30KHz), programmable and with reset input, 2 independent input terminals can perform addition and subtraction counting simultaneously, and can be connected to two A/B phase incremental encoders with a phase difference of 90 °

CPU224/226

6 high-speed counters (30KHz) with the same functions as CPU221/222.

CPU 222/224/226

It can be easily expanded using digital and analog expansion modules. An emulator (optional) can be used to simulate the local input signal for debugging user programs.

Analog potentiometer

CPU221/222 1

CPU224/226 2

CPU221/222/224/226 also has

pulse output

2-channel high-frequency pulse output (maximum 20KHz), used to control stepper motors or servo motors to achieve positioning tasks.

real-time clock

For example, adding time stamps to information, recording machine running time, or controlling process time.

EEPROM memory module (optional)

Can serve as a quick tool for modifying and copying programs (without the need for a programmer), and can assist with software archiving work.

battery module

Used for long-term data backup. User data (such as flag status, data blocks, timers, counters) can be stored for approximately 5 days through internal supercapacitors. Choosing battery modules can extend storage time to 200 days (10 years of lifespan). The battery module is inserted into the card slot of the memory module.

Siemens PLC controllerNotes:

1. Do not connect the AC power cord to the input terminal to avoid burning out the PLC; The grounding terminal should be independently grounded and not connected in series with the grounding terminals of other equipment. The cross-sectional area of the grounding wire should not be less than 2mm2;

2. The auxiliary power supply has a small power output and can only drive low-power devices such as photoelectric sensors;

3. Some PLCs have a certain number of occupied points (i.e. empty address terminal blocks), do not connect the wires;

When there is no protection in the PLC output circuit, protective devices such as fuses should be connected in series in the external circuit to prevent damage caused by load short circuits.