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Description
Waveshare Industrial 4-Ch PWM Output Module Modbus RTU RS485, Adjustable Frequency & Duty Cycle, Modbus RTU PWM Output 4CH1. This product is an industrial standard isolated RS485 to PWM pulse output module. Four channels of frequency and duty cycle are independently adjustable. It adopts Modbus RTU protocol and includes built in protection circuits such as power isolation, magnetic coupling isolation, self recovery fuse, and TVS. 2. The output uses high speed optocoupler isolation, and the output high level voltage can be selected via internal jumpers. 3. Four channels
1. This product is an industrial standard isolated RS485 to PWM pulse output module. Four channels of frequency and duty cycle are independently adjustable. It adopts Modbus RTU protocol and includes built-in protection circuits such as power isolation, magnetic coupling isolation, self-recovery fuse, and TVS.
2. The output uses high-speed optocoupler isolation, and the output high-level voltage can be selected via internal jumpers.
3. Four channels of PWM pulse output with frequency and duty cycle independently adjustable.
4. Supports setting device address (1 to 255) to cascade multiple devices via the RS485 bus.
5. On-board voltage regulator chip supports wide voltage supply from 7V to 36V.
6. On-board integrated power isolation provides stable isolation voltage; the isolated end requires no additional power supply.
7. On-board integrated magnetic coupling isolation enables signal isolation, with high reliability and strong anti-interference capability.
8. On-board self-recovery fuse and TVS (Transient Voltage Suppressor) effectively suppress surge voltage and transient spike voltage in the circuit, protecting against overcurrent, overvoltage, lightning, and static electricity.
9. Built-in watchdog ensures stable output without crashing.
10. Rail-mounted enclosure design, compact size, easy installation.
11. External 3 LED indicators for convenient viewing of power status and signal transmission/reception status.
Parameters:
1. Communication Interface: RS485
2. Communication Baud Rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
3. Default Communication Format: 9600, N, 8, 1
4. Modbus Protocol: Standard Modbus RTU Protocol
5. Supply Voltage: DC 7V to 36V
6. Output Voltage: Default 3.3V, can be set to 5V via internal jumper
7. Output Current: Signal type, less than 30mA
8. Pulse Frequency: 1Hz to 200KHz
9. Frequency Resolution: 0.01Hz
10. Frequency Accuracy: 0.5 percent (equivalent to 5 per mille)
11. Duty Cycle: 0 to 100 percent
12. Duty Cycle Resolution: 0.01 percent
13. Duty Cycle Accuracy: 0.5 percent (1Hz to 50KHz), 1 percent (50KHz to 200KHz)
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Order with confidence!
Color: Black
Pleased with my purchase!
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Reviewed in the United States on April 26, 2026
★★★★★ 4
Awesome, portable room divider for larger rooms
Color: Black, Color: Black
I chose this room divider to use in my son's room that also serves as my home office! It is 72" x 72" in size, so it truly blocks out the other side of the room for optimal privacy. Once it's assembled, it's mildly sturdy - as long as you can bet both ends with the "feet" in line with the ground. I wish that the framework poles had more of an interlocking system so that the divider was easier to erect. I assembled this on carpet, so I had some issues getting the divider to stop moving. It takes a lot of work to set up, as it is massive, so definitely have someone help you. I would suggest adding weights of some sort to the feet of this divider to keep it from shifting. I ended up leaning mine against a bookcase shelf so it wouldn't lean. All and all, this is a great product if you are looking to make a room multipurpose.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
As described
Color: Black
Light weight, easy to put together and you can disconnect the ends and just roll the whole thing nice and tight for quick out of the way storage. Pretty sturdy, doesn't fall over if you bump into it, you could use it outside but if there's a lot of light you can see through a tiny bit if you're really close but I only tested this indoors so not sure about patio types
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Reviewed in the United States on December 18, 2025
★★★★★ 2
Flimsy - choose something else
Color: Black
Very flimsy and barely stands up… better options out there.
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Reviewed in the United States on October 11, 2025
★★★★★ 5
8 panel Room Divider is excellent quality
The GoFlame 8 Panel Room Divider is made with excellent material and the seller of this Divider is totally customer friendly. I highly recommend this company and this Divider if you are shopping for a room divider.
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Reviewed in the United States on April 25, 2026