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Beijing Tengcontrol Technology Co., Ltd.

Manufacturer for Controller, Low Cost Controller, Low Cost PLC manufacturer / supplier in China, offering Low Cost PLC Controller Tengcon T-921, Tengcon PLC (T-960), Stc-1 (8AI 8DI 8DO) Modbus RTU Remote I/O Module and so on.

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Low Cost PLC Controller Tengcon T-921

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Beijing, China
Production Capacity: 10000 PCS/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: T-921
  • Type: Controller
  • Universal: Can Customized
  • Battery Type: Li-Battery
  • COM Port: 2, RS232 or RS485
  • Mount: Standard Rail or Bolts
  • Dimension: 169X134X63mm
  • Warranty: 3 Years
  • Trademark: TENGCON
  • Specification: CE ISO9001
  • HS Code: 8537109021
  • Application: Automatic Doors, Industrial Machinery, Special Equipment, Air-Conditioner, Industrial Control
  • Certification: ISO9001, CE
  • Voltage: 220VAC or 9-36VDC
  • Working Temperature: -40~ 85 Degrees Celsius
  • Ethernet: 1
  • Power: AC 85-265V or DC 9-36V
  • Weight: 0.5kg
  • I/O: 19di, 16do
  • Transport Package: Cartons Packed, Inner Box, Outer Export Carton
  • Origin: Beijing China
Product Description
Low Cost PLC Controller TENGCON T-921

1.Integrated Automation PLC 
2.Temperature Range: -40~85 degree celsius 
3.CE & FCC Certification 

TENGCON T-921  digital programmable controller
T-921 Programmable Controller is a product of TengCon Company's T-900 series PLC,It combines and ARM industrial CPU with a maximum frequency of 72MHZ, And extended 32M SDRAM and a 4M FLASH,and embedded operating system,a 2M user program memory and a 2M user data memory.Programming the T-921 on KW Multiprog programming system and communicate via a Ethernet cable make user's programming very easy.Furthermore,T-921 also provide 2 RS232, or Rs485 interface .It provide the following input and output:19 digital inputs,16 digital outputs,2 high-speed impulse counters,2 high-speed impulse output and a 24VDC power supply.
TengCon T-9 series PLC have passed CE&FCC Certification.
Product Description
Technical Specification:( TENGCON T-921 digital programmbale controller )

Model Number

 TENGCON T-921  (19DI,16DO)  digital programmable controller

Physical Feature


169 x 134 x 63 mm (W x H x D)


0.5 Kg


Standard rail or bolts

Working Temperature

From -40ºC to 85 ºC

I/O Feature

Built-in digital inputs

19  (Optical coupling isolated input ,1 of them can be used as high -speed counters)

Built-in digital outputs

16  (Transistor output)

Built-in high speed impulse counters

1 (100KHz impulse counting)

Built-in high-speed pulse output

2 (100KHz impulse output)

I/O state indicators

44 pcs.

Power Supply and power output

Power Supply

Rated Voltage

220V AC or 24V DC


From 90V AC to 250V AC, 50Hz, or 24V DC

Isolated power output

Rated voltage


Rated current


Output resistance

About 20 Ohm


VOUT(24V+, 24V-)



1 port  (RJ45, 10M/100M adaptive,MODBUS TCP protocol)


1 port  (COM0, for internal test)


2 port 
l COM2, DB9 RS232 direct connect
l COM1, DB9 RS485(pin 2 is B, pin 3 is A)
Default settings: MODBUS RTU Slave, Bode rate 19200,1,8,E, address 1


Set DIP ON will force the IP address to the default

Run/stop switch

2 switches 
run/stop(in stop mode, only PLC program stopped)

Communication indicator

6 pcs. 
l RUN indicator(flashing)
l COM1 COM2serial port communication indicator(flashing when communicating)
l LINK Ethernet linking indicator
DATA Ethernet communicating indicator


User program memory size

2M Byte

User data memory size

2M Byte

Back-up battery data memory

1K Byte

Data back-up time

1 year

CPU feature

CPU frequency

48 MHz

Max. 72 MHz

Minimum instruction processing time

10 millisecond


INT and Bit operation

From 1 to 4 microsecond


Floating-point algorithm

About 40 microsecond


10ms timer quantity 

No limit



Internal clock

Back-up battery

Order Requirements:
Please confirm and choose the following information when you are ready to place order :

Working Power Supply

220V AC 50HZ 

Please confirm which one 

9-36V DC

DI Voltage




1 RS485 port,1RS232 port (default setting)

Please confirm which one

2 RS485 port


 Low Cost PLC Controller Tengcon T-921
Low Cost PLC Controller Tengcon T-921

About us: Beijing Tengcontrol Technology Limited Company

Rely on the hardware, software and network technique, Tengcon Technology devoted to manufacture industrial automation core products and systems with more than 30%of employee are focus in Research & Development. Tengcon has deep and wide experience in various signal acquisition, especially on electric signal acquisition, and also, familiars with all main protocol like MODBUS, IEC8705, PROFIBUS DP, CAN, PROFINET etc., and knows the ropes of IEC61131 and technology of Programmable Logic Controller development as well as IEEE1588 and Clock Synchronization Technology in Ethernet, we are also robust on antiinterference and lightning protection technology to ensure the reliability of every product delivered to customer.

Tengcon Technology proposed a new advanced concept of Complete Distributed Network Control System, in that the control system is constructed via absolutely new theory. It can be applied to construct the SCADA (Supervisory Control and Data Acquisition), PLC (Programmable Logic Controller) and DCS (Distributed Control System). Typical product were developed based on these is T9 series which were launched in market already. More than 100 thousands of product have been delivered to customers and got widely and good customer acceptance in past years. 

All these products are being used in various industries in 18 counties. They showed strong reliability in different systems and wide environment include High Speed Rail, oil and gas field, power monitor and control system, kind of automatic production line, Building Management System,city lighting control system, vehicle monitoring, agricultural farms etc. we are keeping to develop and provide first class of product to all the customer in worldwide.

Our Service :
Q:What's the guarantee for plc??
1.Any inquiries will be replied within 24 hours professionally .
2.Tengcon plc controller provide Three years guarantee of repairing          
3.All product will have been strictly quality checked in factory before packing
4.High quality,resonable&competitive price,fast lead time.  
Q:What's the trading term and payment method?
A:FOB is our trading term ,if you require different term,please contact to us discuss about it .And the payment methord we prefer is T/T,paypal,but we also can accept the payment via paypal and western union ,bank transfer ESCROW.Welcome to contact to us to discuss details 
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Mr. Bruce Chan
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