4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
US$23.99
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V

4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V

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US$23.99

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Product Description

Description: 

 
1. DC 12V power supply (voltage range 9-13V ) 
2. Standby current (all relays closed) 11-13MA, 1 relay open 44MA, 2 relays open 77MA, 3 relays open 110MA,4 relays open 140MA 
3. "open" "close"  "Momentary" "Self-locking" "Interlock" "Delay" "Read" 7 Commands
4. Two instruction-control mode : AT command and MODBUS command
5. Under the AT command ,the maximum delay is 9999 seconds Under the MODBUS command ,the maximum delay is 255 seconds
6. AT commands can be made serial HyperTerminal (serial assistant) Enter;MODBUS commands can be made serial HyperTerminal (serial assistant)  OR "Modbus Poll" Enter;
7.  Under the MODBUS command mode, it can support up to 32 devices in parallel 
8. Size: 80 x47 x 19.5 mm  
9. Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC
  
Application:
 
- Automated industry PLC
- Smart Home,Home Automation ,Wiser Home;
- Identification system;
- Motor FW & BW
 
Typical Applications:
 
1. AT command mode (A5 = OFF), in this mode can be through the serial HyperTerminal (serial assistant) enter a simple AT command control relay. AT command mode time up to 9999 seconds 
 
 

2. MODBUS command mode (A5 = ON), you can control a variety of ways: Serial Hyper Terminal Control (need to manually add the CRC), Modbus Poll software control (software automatically add the CRC), PLC or MCU process control

 

Wiring Diagram:

1. DC 12V control circuit,Wiring diagram below. "LOAD" may be camera,LED lights, fans, motors and other DC 12V equipment
 
 
 
 
2. DC 1-100V OR AC 85-265V control circuit,Wiring diagram below(Note:If not DC 12V load, need another DC 12V power supply). "LOAD" may be LED lights, fans, motors Lights, fluorescent lights, solar water heaters and other DC AC equipmen 
 

3. DC 1-100V OR AC 85-265V control circuit,Wiring diagram below(Note:If not DC 12V load, need another DC 12V power supply). "LOAD" may be Machine tool ,CNC,3D Printer,LED lights, fans, motors and other DC AC equipment

 

 
 
Test Software:
 
Serial HyperTerminal:
 
Modbus Poll
 

Package Included:

1 x 4 Channel DC 12V RS485 Relay Module



More Detailed Photos:

4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V

Additional Information

When you order from Alexnld.com, you will receive a confirmation email. Once your order is shipped, you will be emailed the tracking information for your order’s shipment. You can choose your preferred shipping method on the Order Information page during the checkout process. Alexnld.com offers 3 different international shipping methods, Airmail, Airmail registered and Expedited Shipping Service, following are delivery times:

Airmail and Airmail Registered Area Time
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Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
Italy, Brazil, Russia 10-45 business days
Other countries 10-35 business days
Expedited Shipping 7-15 business days to Worldwide

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Returns

You may return this item within 15 days of delivery for a full refund. We’ll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

 

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Returns Eligibility

In order for a return to be eligible for a refund please ensure you return within 15 days from the delivery date of your item.

We kindly ask that you return your item to us in new or lightly used condition with no signs of worn out. If the item is in used condition, please send us the photo to confirm its condition before returning it. We reserve the right to refuse any return if there are any signs of worn out or if parts are missing.

Please be aware, we do cover the cost of the returns fees only if the return is a result of our error (you received an incorrect or defective item, etc.).

All customers should contact us before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

 

Refunds

Following a successful inspection of your return we will process a full refund to the credit / debit card or PayPal account which was used to place the original order. 

You should expect to receive your refund within four weeks of returning your package, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 20 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (3 to 5 business days).

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