DC Input PLC Controller

DC Input PLC Controller


SR-22MTDC DC12/24V 14 points DC input (with 8 points analog ) , 8 points transistor output(NPN) plc controller
(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.
(2) Programming 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) 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.

The input can receive not only the digital input but also the analogue input to perform the control and transmission of the temperature, moisture, pressure, flow level unit and so on.

It has well-featured and compact design with 8 point input and 4 point output. Equipped with expansion module, it can be expanded into 82 I/O better, and to MAX 122I/O. It can be connected with telephone voice module and remote control module to perform the notification and alarming function. And the connection between the host and the module can be Bridge SR-CBA or flexible connection SR-ECBA.

It has short circuit protection (internal) and relay output protection (external) function, which makes your usage safer and easier.

Technical Index

Power supply



Input parameters

Input No


Digital input


Analogue input


Power range


Input signal0


Input signal1


Output parameters

Output No


Output type

Transistor (NPN)output

Output voltage


Output current


Environment temperature

Running temperature




Switch frequency



Resistor/light load


Sensitive load


Other parameters

Clock buffer memory at 25℃


RTC accuracy




Emission on line


The main frequency range


Function block No


Program storage capacity


Isolation intensity


Installation Dimensions

About order

Conditions and terms

1. All of the products are brand new, top quality components, absolutely no used items.

2 .The pictures are for reference only. Exact specifications should be obtained from the datasheet.

3. Prices, specifications, and availability of all items are subject to change without notice.

Payment Terms

1. We accept payments made by Western Union, TT, and PayPal.

2. Since you made the payment successfully, you can send us the Reference NO or MTCN.


1. We will ship the items within 3-15 working days after the payment is reached.

2. We ship to you by Express, by sea, by air according to the PI.

3. Any import fees or charges are the buyer's responsibility.


Warranty is available based on the following points:

1. Quality guaranteed for one year.

2. If the items you purchased from our company are not of perfected quality, that is they don't work electronically to manufacturers specifications, simply return them to us for replacement or refund.

3. If the items are defective, please notify us within 3 days of delivery.

4. Any items must be returned in their original condition to qualify for a refund or replacement.

5. The buyer is responsible for all the return shipping cost incurred.


1Q: What's your warranty?

A: One year.

2Q: What's your contact information?

A: Our address: Liushi town, Zhejiang province, China.    

Skype: benjaminying

3Q: What's your shipment method?

A: We ship by Express, by air, by sea, by train. Normally we checked and compare, then provide customer the most proper shipment method.

4Q: What's about MOQ?

A: First order MOQ=1pcs

5Q: If I want to release order, what's the payment method you accept?

A: We accept T/T, PayPal, Western union, L/C.

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