R428A01 2 In 1 RS485 RS232 TTL AT Modbus RTU Relay Switch Board PC USB COM UART Serial Port 1 CH 12V DC Module

R428A01 2 In 1 RS485 RS232 TTL AT Modbus RTU Relay Switch Board PC USB COM UART Serial Port 1 CH 12V DC Module

  • Model: R428A01
  • Availability: In stock
  • Weight: 0.022Kg
$4.99
  • Description
  • Technical Documents
  • Guidance videos
  • Reviews
  • Shipping & Returns
Product Name: 2 In 1 RS485 RS232 TTL AT Modbus RTU Relay Switch Board PC USB COM UART Serial Port 1 CH 12V DC Module
 
 
Package inlcuded:
1 x DC 12V 1Ch RS485 Modbus & AT command Relay Board
 
 
Description:
 
1: DC 12V power supply
 
2: Standby current (all relays closed) 7-8MA, 1 relay open 40MA
 
3: ''open'' ''close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay'' 6 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 247 devices in parallel
 
8 Size: 40 * 30 * 18mm ;
 
9 Weight: 17.5 g;
 
10 Maximum load: 20A 14VDC;20A/125VAC;10A/250VAC
 
Instruction manual Please ask us after the purchase
 
 
Application
Automated industry PLC
Smart Home,Home Automation ,Wiser Home;
Identification system;
Motor FW & BW
CCTV Camera PTZ Control
Security system
LED dot matrix screen

 
Typical applications:
 
1 AT command mode (M0 Connect), 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 (M0 disconnect), 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 12V motor reversing control, Wiring diagram below. ''LOAD'' can be Fans, motors, pumps and other DC 12V equipment

 
 
 
 
Test Software(We offer a demo video):
Serial HyperTerminal:
Modbus Poll
 
 
 
 

 

 

Choose a ranking for this item. 1 star is the worst and 5 stars is the best.





NOTE: HTML tags are not allowed.
NOTE: Reviews require prior approval before they will be displayed

* Delivery Time.
We need 1-2 days to process your order before shipping.There are two shipping methoed. Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.Slow Delivery: The delivery time for US, European countries the delivery will take 10-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 4 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.

payment
Copyright © 2024 eletechsups.com All Rights Reserved.