40 Points PLC Relay Output

LM3109 220VAC power supply, 24 Channels DC24V DI,16 Channels Relay DO PLC Features (1) High reliability. Since PLCs mostly use a single-chip microcomputer, the integration is high, and the corresponding protection circuit and self-diagnosis function improve the reliability of the system.


LM3109 220VAC power supply, 24 Channels DC24V DI,16 Channels Relay DO PLC 

1.Product Introduction of 40 Points PLC Relay Output

(1) 40 Points PLC Relay Output has high reliability. Since PLCs mostly use a single-chip microcomputer, the integration is high, and the corresponding protection circuit and self-diagnosis function improve the reliability of the system. (2) The programming of 40 Points PLC Relay Output is easy. PLC programming mostly uses relay control ladder diagrams and command statements, the number of which is much less than the microcomputer instructions. In addition to medium and high-end PLCs, there are only about 16 small PLCs in general. Due to the simplicity of the ladder image, it is easy to master, easy to use, and even requires no computer expertise to program. (3) It has Flexible configuration. Since the PLC adopts a modular structure, the user can flexibly change the function and scale of the control system by simply combining, so that it can be applied to any control system.

•  Rated Voltage: 220V AC •  24 Channels DC24V DI, 16 Channels Relay DO •  Program Memory Capacity: 120KB •  Interrupt Input: 3 Points •  Expandable I/O: 7 Modules

2.Specification of 40 Points PLC .

► CPU Features

Local I/O

24 Channels DC24V DI, 16 Channels Relay DO

Expandable I/O

7 modules

High-speed counter

Monophase counter: 3 points, 100KHz        Biphasic counter: 2 points, 100KHz

Pulse output


Pulse catch

3 points

Interrupt input

3 points

Analog potentiometer

2, value setting range 0~255

User program memory capacity

120K bytes

Retain area

6K bytes

Input data memory

512 bytes

Output data memory

512 bytes

Mid-variables memory

8K bytes

Global memory

24K bytes



Real-time clock



No limit (1ms as minimum unit)


No limit (Maximum counting range: 16 bit)

Basic instructions


Function blocks

Over 70

Operation speed

0.65μs (Basic instruction)

► Power Supply Specifications

Power supply

220V AC@50Hz

Allowed range

187V AC~242V AC@50Hz

Current consumption (MAX)


Output voltage

24V DC

Allowed range

22.8V DC~25.2V DC

Current output

+24VDC (To expansion bus)


+24V DC (To the outside)


+5V DC (To expansion bus)


Short circuit protection

900mA, 24VDC output

► Communication Features

Communication interface

2 (RS-232 and RS-485) (Non-isolating)

Communication protocol

Proprietary protocol/MODBUS/Free protocol

► Input Features

Input type


Input voltage rated value

24V DC

Allowed range

0V DC~30V DC

Logic 1 signal

15~30V DC, allowed minimum current 3mA

Logic 0 signal

0~5V DC, allowed maximum current 1mA

Input delay time

<0.6ms (Rated input voltage)

Isolation mode

Photo coupler isolation

Isolation group

3 groups

Maximum Isolation Voltage


 ► Output Features

Output type


Output voltage

24V DC or 24 V AC~230V AC

Allowed range

5V DC~30V DC or 5V AC~250V AC

Common end output current total


Output switch capacity

2A, resistance load

Minimum load

10mA (contact voltage 5VAC or 5VDC)

Over current protection


Contact impedance


Isolation group

4 groups

Isolation voltage between coil and contact

3000VAC, 1 minute, leakage current 1mA

Isolation voltage between contacts

750VAC, 1 minute, leakage current 1mA

Isolation resistance (minimum)

100MΩ between contacts or between coil and contact under 500VDC

Contact switch delay time


Contact switch frequency (maximum)


Relay mechanical life

No load: over 10,000,000 times; Rated        Resistive load 2A: over 100,000 times

► Physical Features


200mm(L)×90mm(W)×70mm (H)



3.YUMO company Introduction

Yumo company has been established for 13 years. The company's employees learn Kazuo Inamori's philosophy and apply them to their work and life. We sell a variety of high-voltage electrical appliances, loved by the majority of customers, buy back rate is a lot.

YUMO Company

Certificate display

certificate of YUMO

We were in Thailand exhibition in 2019

exhibition of YUMO

4. FAQ

Q1.How I can trust you for the payment safe and quality control and delivery ?

A: know it need time to built the mutual trust,but it is important for both seller and buyer.

For payment,We accept T/T, Paypal, Western union, L/C.

For quality,we have full experience of quality control more than 13 years for international trade .

For delivery, we have small stock for most products for 3-7days. According to our production plan,the customized order will be 15-20 days and it depends on your confirmation process too.

Q2.If any question more,how long I can get your reply ?

A:If you have any questions,please cintact us freely or sent email for us. It is high appreciated and all reply will be within 24 hours of China working day. We should comply with the law and our colleague need to spent time with their family and friends one weekend and holiday.

Q3: How long is your warranty?

A: We provide 1 years warranty. You can contact us at any time if there any problems.

5.Contact us.



TEL:0086-577-62791815    Mobile:0086-13757779011



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