What is a PLC (Programmable Logic Controller) and How Do Input/Output Units Function in Automated Systems?

A PLC, or Programmable Logic Controller, is the brains behind many automated systems. It's like a specialized computer designed for controlling machines and processes. PLCs use Input/Output (I/O) units to communicate with sensors and actuators in the actual system. These I/O units serve as the interface between the digital world of the PLC and the physical world of your machines. Inputs gather data from sensors, while outputs send control signals to devices like motors and valves, allowing the PLC to make decisions and automate tasks.

How Do PLC Input/Output Units Interface with Devices and Sequencers in Industrial Automation?

PLC I/O units interface with devices through wiring connections. Inputs are connected to sensors or switches, while outputs are linked to devices like motors, valves, or lights. The PLC's programming defines how inputs and outputs interact. For example, an input from a temperature sensor might trigger an output to turn on a cooling fan. PLCs can also work in sequence, performing a series of tasks based on inputs and previous outcomes. This sequence can be programmed to control complex industrial processes.

How Do I Install and Program PLC Input/Output Units for Optimized Control in Automated Machinery?

Installing PLC I/O units involves mounting them in a control panel, connecting wires, and ensuring proper electrical connections. To program a PLC for optimized control, you'll use specialized software to create a logic program. This program defines how the PLC responds to different inputs and manages outputs. It's essential to understand your machinery's requirements, design a logical program, and thoroughly test it to ensure efficient and safe operation.

In Which Industrial Applications Are PLCs Commonly Used?

PLCs are incredibly versatile and can be found in various industrial applications. They're widely used in manufacturing for tasks like assembly line control and quality assurance. They're also essential in processes like water treatment, energy production, and food production. Basically, anywhere automation and precise control are needed, you'll often find PLCs at the heart of the operation.

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OMRON PLC (Input/Output Units)（Rated Input Voltage：DC24）

OMRON offers products PLC (Input/Output Units) specified by Rated Input Voltage DC24 from Electrical & Controls product category. There are a total of 1 items. Parts and equipment for controlling machines and electrical systems. Controllers and power supplies. OMRON products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.

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Specification/Dimensions

Number Of Inputs
1

2

4

8

8 points

10

12

16

16 points

24

32

32 points

48

64

64 points

96

NA
Clear

Input Format
- DC input
- AC input
- AC/DC input
- Other
Clear

Rated Input Voltage(V)
DC-10～+10

1～5 / 0～5 / 0～10

5

DC5

DC5V

DC5-12

DC5/DC12

DC5/24

12 to 24

12–24

DC12/24

DC12~24

DC 12/24

DC13 to 30

18-30 DC

20.4-28.8 DC

DC20.4 to 28.8

24

24 DC

24 V

DC24

DC24V

DC 24

DC48

DC48/AC48

AC100V

AC100-120

AC 100-120

100 to 120

AC100 to 120

AC100 to 120V

AC100～120

VAC 100–120

AC100 to 240

AC100 to 240V

AC 100–240

AC200-240

200 to 240

AC200 to 240

(Not applicable)

NA

Not available
Clear

Input answer time
- Less than 1 mS
- Less than 10 to 20 mS
- Less than 50 to 100 mS
- Other
Clear

Number of Outputs
0

1

2

2 (test)

4

6

7

8

8 points

16

16 points

16/32/48/64

24

32

32 points

48

64

64 points

96

NA
Clear

Output Format
- Relay contact output
- Triac output
- Transistor / source output
- Transistor / sync output
- Other
Clear

Rated load voltage(V)
DC-10～+10

5

DC5 to 12

DC5/12/24

DC5 to 24

DC5～24

12

DC12-24

12/24

12＄24

DC12 to 24

DC12/24

DC12/24V

DC 12/24

DC 12–24

24

DC24

DC24V

DC24/AC240

DC24V/AC240V

DC 24 / AC 240

DC48

AC100-240

100 to 240 AC

AC100～240

AC 100 - 240

AC 100–240

DC110/AC240

240 AC

AC240

AC 240 / DC 24

AC250V/DC30V
Clear

Protection function
- None
- Input protection function
- Output protection function
- Other
Clear

Connection Terminal
- Terminal Block
- Connector
- Terminal block/connector
- Europe terminal block
Clear

Representative Standard
- CE
- UL
- CUL
- TUV
- CSA
- Other
Clear

Brand	ANYWIRE (0) BEIJER ELECTRO (0) FESTO (0) FUJI ELECTRIC (3) KOYO ELECTRONIC (0) MITSUBISHI (6) OMRON (1) PANASONIC (0) Schneider Electric (0) WAGO (0) WATANABEDENKI (0)
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Until 31/03/2025

NX Series Safety I/O Unit NX-SI / SO

OMRON

Adds a Safety CPU Unit and Safety I/O Unit to an EtherCAT coupler to enable unified safety control

■ Features
· EN ISO 13849-1 (PLe / Safety Category 4), IEC 61508 (SIL3) certified
· Incorporating the Safety over EtherCAT (FSoE)* protocol enables both standard control and safety control on the same EtherCAT
· There are 2 types of Safety Input Unit: a 4-point type and an 8-point type, and 2 types of Safety Output Unit, a 2-point type and a 4-point type
· Safety units can be freely combined and placed with standard units

*The open protocol Safety over EtherCAT (abbreviated as FSoE; "FailSafe over EtherCAT") defines a
safety-related communication layer for EtherCAT.
Complies with the requirements of IEC 61508 (SIL3), enabling communication of safety data and standard data on the same communication system without
communication speed or cycle time restrictions.

From: ฿ 16,733.00
Special Price
Days to Ship: Same day

Same day


Brand
Product Series
From
Days to Ship
Number Of Inputs
Input Format
Rated Input Voltage(V)
Input answer time
Number of Outputs
Output Format
Rated load voltage(V)
Protection function
Connection Terminal
Representative Standard

	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025
Brand	OMRON
Product Series	NX Series Safety I/O Unit NX-SI / SO
From	฿ 16,733.00 Special Price On Sale Until 31/03/2025
Days to Ship	Same day
Number Of Inputs	8
Input Format	DC input
Rated Input Voltage(V)	DC24
Input answer time	-
Number of Outputs	2 (test)
Output Format	-
Rated load voltage(V)	-
Protection function	Other
Connection Terminal	Terminal Block
Representative Standard	CE / UL / CUL / TUV

Related Categories to PLC (Input/Output Units)

FAQ PLC (Input/Output Units)

Question: What is a PLC (Programmable Logic Controller) and How Do Input/Output Units Function in Automated Systems?: Answer: A PLC, or Programmable Logic Controller, is the brains behind many automated systems. It's like a specialized computer designed for controlling machines and processes. PLCs use Input/Output (I/O) units to communicate with sensors and actuators in the actual system. These I/O units serve as the interface between the digital world of the PLC and the physical world of your machines. Inputs gather data from sensors, while outputs send control signals to devices like motors and valves, allowing the PLC to make decisions and automate tasks.
Question: How Do PLC Input/Output Units Interface with Devices and Sequencers in Industrial Automation?: Answer: PLC I/O units interface with devices through wiring connections. Inputs are connected to sensors or switches, while outputs are linked to devices like motors, valves, or lights. The PLC's programming defines how inputs and outputs interact. For example, an input from a temperature sensor might trigger an output to turn on a cooling fan. PLCs can also work in sequence, performing a series of tasks based on inputs and previous outcomes. This sequence can be programmed to control complex industrial processes.
Question: How Do I Install and Program PLC Input/Output Units for Optimized Control in Automated Machinery?: Answer: Installing PLC I/O units involves mounting them in a control panel, connecting wires, and ensuring proper electrical connections. To program a PLC for optimized control, you'll use specialized software to create a logic program. This program defines how the PLC responds to different inputs and manages outputs. It's essential to understand your machinery's requirements, design a logical program, and thoroughly test it to ensure efficient and safe operation.
Question: In Which Industrial Applications Are PLCs Commonly Used?: Answer: PLCs are incredibly versatile and can be found in various industrial applications. They're widely used in manufacturing for tasks like assembly line control and quality assurance. They're also essential in processes like water treatment, energy production, and food production. Basically, anywhere automation and precise control are needed, you'll often find PLCs at the heart of the operation.