• Shenzhen Coolmay Technology Co., Ltd.
    Juan Guevara
    muy buen trato con el vendedor y muy buena asesoria y el producto está trabajando muy bien ya tiene un año y no he tenido ningún problema
  • Shenzhen Coolmay Technology Co., Ltd.
    Obert Matetakufa
    I'm very happy with the business deal and all the support they are giving . A very good business partner
Contact Person : Sandra
Phone Number : 008619925291353
Whatsapp : +8619925291353

QM3G-50FH PLC Automation Control Panel Single Phase 6 Channel 60KHz TYPE C RS232 RS485

Place of Origin CHINA, GONGDONG
Brand Name Coolmay
Certification CE
Model Number QM3G-50FH
Minimum Order Quantity 1 peice
Price Negotiable
Packaging Details carton
Delivery Time 3-8 works days
Payment Terms T/T, Western Union, MoneyGram
Supply Ability 15000 Units Per Week

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Product Details
Dimension 151*96*36mm Cutout Size 143*86mm
Weight(kg) 0.3 Type 5"TFT
Display Size 108*65mm Resolution(pixels) 800*480
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TYPE C PLC Automation Control Panel


RS485 PLC Automation Control Panel


RS232 PLC Automation Control Panel

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Product Description

QM3G-50FH Plc Automation Control Panel 32bit CPU 408MHz 151*96*36mm Single Phase 6 Channel 60KHz TYPE-C RS232 RS


The all-in-one solution is to integrate the controller, operation interface, input/output, analog input/output, high-speed counting/pulse and communication port into a compact unit to meet the needs of customer equipment automation control.





1.32K step program capacity, 32K power-off holding registers, supporting interrupts, linear arc interpolation, and PID self-tuning.

2. Special encryption is possible. The touch screen and PLC can be encrypted separately, and setting the PLC password to 12345678 can completely prohibit reading programs.

[Note: PLC only supports 8-bit password encryption]

3. PLC programming is compatible with software GX Developer 8.86Q and GX Works2, and the touch screen uses TPWorks1.39 editing software.

4. Network modules can be installed according to customer requirements to achieve remote control. More specifications can be customized in bulk.


Model QM3G-50FH
Dimension 151*96*36mm
Cutout size 143*86mm
Input 24VDC
Power Consumption 4-6W
Feature 60K colors resistive touch screen, supports portrait display
Type 5"TFT
Display size 108*65mm
Resolution(pixels) 800*480
RAM 64MB (Please inquire if requires storing historical data)
CPU 32bit CPU 408MHz
COM ports Type-C HMI download port (can download PLC program through the USB penetrating function), RS232 port
Software Coolmay TPWorks HMI Programming Software
I/O level

- Input: Passive NPN, public terminal isolated

- Transistor output: Low level NPN, COM connect to negative

- Relay output: Normally open dry contact

DO type and load


- MT: 2A/point, 4A/4 point COM, 5A/12 point COM

MR: 2A/point, 5A/12 point COM

High-speed counting Single phase 6 channel 60KHz, or 2 AB 60KHz + 1 AB 10KHz, or 2 ABZ 60KHz + 1 AB phase 10KHz

High-speed pulse

(Only for MT models)

8 channels, Y0-Y3 is 100KHz, Y4-Y7 is 10KHz.

High-speed counting + high-speed pulse < 480KHz

COM port 1x TYPE-C, 1x RS232, 1x RS485
Software Compatible with GX Developer8.86 and GX WORKS 2
Detailed info. refer to: “Coolmay QM3G-FH All-in-One User Manual”, “Coolmay CX3G/FX3GC PLC Programming Manual”, “Coolmay TP HMI User Manual





Coolmay PLCs are widely used in different automation industries. Their multiple functions, excellent performance, easy installation, etc.. offers customers more conveniences.


QM3G-50FH PLC Automation Control Panel Single Phase 6 Channel 60KHz TYPE C RS232 RS485 0


1.Precautions of using PLC transistor and relay
The PLC output is a common cathode output, the theoretical value is 1A, the actual use is less than 500mA, the COM wiring is negative, please use 24V voltage, there is no voltage output when it is used as a switch. If an external relay, the relay needs an external power supply.
The relay has a contact life, the theoretical value is 30W times, and the theoretical value of the external load does not exceed 5A. Frequently, the full load current may affect the service life, and there is no voltage out.
2.Precautions of Coolmay PLC output type selection
MT: indicates the transistor output, MR: indicates the relay output, and MRT: indicates the relay transistor mixed output.
The main differences between transistor output and relay output are:
(1)The difference in current load. At present, we use a transistor with a maximum current load of 500MA, and the maximum current load of the relay is 5A (the maximum relay current of the EX2N(S)/DX2N(S) series PLC is 3A);
(2)Output power: The transistor can only be connected to the DC24V power supply , and the relay can be connected to the DC24V and AC220V power supply ;
(3)Functional characteristics: If you need to send a pulse to drive a stepper motor, you should use the transistor output or the mixed output. Also if the output switch is active, it is recommended to use a transistor output;
(4)If both the relay and the transistor are available, it is recommended to use a transistor output because the transistor has no contact life limit and the lifetime will be longer than the relay as long as the current does not exceed the limit.