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Beijing Tengcontrol Technology Co., Ltd.

RTU, Modbus RTU, Remote Control manufacturer / supplier in China, offering Micro RTU (STC-112) Modbus I/O Module, Tengcon PLC (T-960), Stc-1 (8AI 8DI 8DO) Modbus RTU Remote I/O Module and so on.

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Supplier Homepage Product RTU (Modbus IO Modules) Micro RTU (STC-112) Modbus I/O Module

Micro RTU (STC-112) Modbus I/O Module

FOB Price: US $189 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $189/ Piece
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Production Capacity: 10000 PCS/Year
Transport Package: Cartons Packed, Inner Box, Outer Export Carton
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: STC-112
  • Certification: ISO: 9001, CE
  • Customized: Customized
  • Input Power Supply: DC 9-36V or AC 85-265V
  • Warranty: 3 Years
  • I/O: 8ai, 2ao, 8di, 4do
  • Origin: Beijing China
  • Function: Automatic Control
  • Condition: New
  • Mount: Standard Rail or Bolts
  • Key Words: Modbus I/O Module
  • Working Temperature: From-20 to 70
  • Trademark: TENGCON
  • HS Code: 8537109021
Product Description











1 Isolated RS485  and 1 RS232( 3 wire)

Modbus RTU 


 Analog input

8 Channel Analog Input

0~5v or 0~20mA (use jumper to select)

Input resistance 0~5v 170kΩ  0~20mA  250Ω

12bit  A/D

0.2% FS ± 2digit 

Analog Output

2 Channel Analog Output

0~10v or 0~20mA (use jumper to select)

0~10v  Output resistance  250Ω

0~20mA  Output resistance 100KΩ Max Load 300Ω

12bit  D/A

0.2% FS ± 2digit 

Digit Input

8 Channel Digit Input

Photo-coupler Isolated 

Dry contacts

Commons:  all Negative

DC 12v~48V Input Voltage 

20kΩ Input resistance

SOE with 1ms resolving

Pulse Counter with 32BIT

1KHz  Maximum Counter Frequency

Relay Output

4 Channel Relay Output

One Form A  (SPST)

250V/5A AC Contact Capacity

Relay Contacts Directly connect to IO terminals



1 Isolated RS485 and  1 RS232( 3 wire)

Modbus RTU

Max baud rate 38400bps

Address Setting:  DIP SW 1~63

Operation Condition

Operating temperature:

-20°C~ 70°C

Storage temperature:


Operating humidity:

<85% RH(20±5°C)


86~108Kpa  No corrosive gas or heavy dust




M3 screw terminals


Surface or DIN rail


125×110×40 mm

Power Supply:

AC 85~265V 40HZ~65HZ OR DC 24 v OR DC12V

Power Consumption:

< 3W

Ingress Protection


Beijing Tengcontrol Technology Limited Company
Rely on the computing hardware, software and network technique, Tengcon Technology devoted to manufacture industrial automation core products and systems. More than 30 per cent staffs are in Research & Development, so we gets strong ability on product R&D. Tengcon Technology has deep and wide experience on various signal acquisition, especially on electric signal acquisition, so that, our products are very robust on anti-interference and lightning protection.
Tengcon Technology advanced a 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 Controller) and DCS (Distributed Control System).
We have manufactured more than 100 thousands products in 10 years, and all are used in various industrial plants and agricultural farms. With customer's continuous testing and our technology improving, Tengcon Technology product are widely accepted by various users for its excellent network communication, architecture, anti-interference ability and wide temperature adaptation.
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Mr. Bruce Chan
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