R221A08 DC 12V 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For PLC Smart Home Garage door Car alarm Farm Motor

R221A08 DC 12V 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For PLC Smart Home Garage door Car alarm Farm Motor

  • Model: R221A08
  • Availability: In stock
  • Weight: 0.125Kg
$15.99
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Product Name: DC 12V 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For PLC Smart Home Garage door Car alarm Farm Motor

 


 

 


 

 

 

 

 
 

Package inlcuded:
 

1 x DC 12V 8Ch RS232 Relay Board
 

 
 
 
 

Description:
 
 
 
 
 
 

8 Channel Relay Module;
 

 
 

Power input: DC 12V(8.5-13.5V).
 

 
 

Standby current (all relays closed) 18MA, 1 relay open 51MA, 2 relays open 82MA, 3 relays open 112MA, 4 relays open 142MA, 5 relays open 170MA , 6 relays open 198MA , 7 relays open 227MA , 8 relays open 251MA
 

 
 

PC Serial ports RS232 Control Relay;
 

 
 

Power indicator : LED lights;
 

 
 

Output indication : relay output with LED indicators,easy to see working status of the relay;
 

 
 

Communication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes. Two-way data transmission.
 

 
 

Baud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes.
 

 
 

Size : 94mm*62mm*19mm
 

 
 

Weight : 120g
 
 
 

For more information, please contact me
 
 
 

 
 

1 Control commands:
 

 
 

1. Reading status(reading the satus of the relay (on/off))
 

 
 
 

Channel 1 :55 56 00 00 00 01 00 AC
 

Channel 2 :55 56 00 00 00 02 00 AD
 

Channel 3 :55 56 00 00 00 03 00 AE
 

Channel 4 :55 56 00 00 00 04 00 AF
 

Channel 5 :55 56 00 00 00 05 00 B0
 

Channel 6 :55 56 00 00 00 06 00 B1
 

Channel 7 :55 56 00 00 00 07 00 B2
 

Channel 8 :55 56 00 00 00 08 00 B3
 
 
 

2.Relay open (issue this command,Relay open,COM connect to NO)
 

 
 
 

Channel 1 :55 56 00 00 00 01 01 AD
 

Channel 2 :55 56 00 00 00 02 01 AE
 

Channel 3 :55 56 00 00 00 03 01 AF
 

Channel 4 :55 56 00 00 00 04 01 B0
 

Channel 5 :55 56 00 00 00 05 01 B1
 

Channel 6 :55 56 00 00 00 06 01 B2
 

Channel 7 :55 56 00 00 00 07 01 B3
 

Channel 8 :55 56 00 00 00 08 01 B4
 
 
 

 
 

3. Relay close (issue this command,Relay close,COM disconnect NO,and COM connect to NC)
 

 
 
 

 
 
 

Channel 1 :55 56 00 00 00 01 02 AE
 

Channel 2 :55 56 00 00 00 02 02 AF
 

Channel 3 :55 56 00 00 00 03 02 B0
 

Channel 4 :55 56 00 00 00 04 02 B1
 

Channel 5 :55 56 00 00 00 05 02 B2
 

Channel 6 :55 56 00 00 00 06 02 B3
 

Channel 7 :55 56 00 00 00 07 02 B4
 

Channel 8 :55 56 00 00 00 08 02 B5
 
 
 

 
 

4. Relay toggle(Relay status reversal,if COM connect to NO,this commands will Disconnect COM to NO and Reverse COM connect to NC,and vice versa)
 

 
 
 

 
 

 
 

Channel 1 :55 56 00 00 00 01 03 AF
 

Channel 2 :55 56 00 00 00 02 03 B0
 

Channel 3 :55 56 00 00 00 03 03 B1
 

Channel 4 :55 56 00 00 00 04 03 B2
 

Channel 5 :55 56 00 00 00 05 03 B3
 

Channel 6 :55 56 00 00 00 06 03 B4
 

Channel 7 :55 56 00 00 00 07 03 B5
 

Channel 8 :55 56 00 00 00 08 03 B6
 
 
 

 
 

5. Relay momentary(Relay COM connect to NO,disconnect after 200MS)
 

 
 
 

Channel 1 :55 56 00 00 00 01 04 B0
 

Channel 2 :55 56 00 00 00 02 04 B1
 

Channel 3 :55 56 00 00 00 03 04 B2
 

Channel 4 :55 56 00 00 00 04 04 B3
 

Channel 5 :55 56 00 00 00 05 04 B4
 

Channel 6 :55 56 00 00 00 06 04 B5
 

Channel 7 :55 56 00 00 00 07 04 B6
 

Channel 8 :55 56 00 00 00 08 04 B7
 

 

 


6. Relay Interlock

 

Channel 1 :55 56 00 00 00 01 05 B1
 

Channel 2 :55 56 00 00 00 02 05 B2
 

Channel 3 :55 56 00 00 00 03 05 B3
 

Channel 4 :55 56 00 00 00 04 05 B4
 

Channel 5 :55 56 00 00 00 05 05 B5
 

Channel 6 :55 56 00 00 00 06 05 B6
 

Channel 7 :55 56 00 00 00 07 05 B7
 

Channel 8 :55 56 00 00 00 08 05 B8
 

 
 

 
 

Once issue a command,will have a return fame,7th byte of return fame mean the satus of realy.
 

 
 

2 return command
 
 
 

1.Return relay open(return this command,mean COM connect to NO)
 

 
 
 

Channel 1 :33 3C 00 00 00 01 01 71
 

Channel 2 :33 3C 00 00 00 02 01 72
 

Channel 3 :33 3C 00 00 00 03 01 73
 

Channel 4 :33 3C 00 00 00 04 01 74
 

Channel 5 :33 3C 00 00 00 05 01 75
 

Channel 6 :33 3C 00 00 00 06 01 76
 

Channel 7 :33 3C 00 00 00 07 01 77
 

Channel 8 :33 3C 00 00 00 08 01 78
 

 
 

 
 

 
 

2.Return relay close(return this command,mean COM disconnect NO , and COM connect to NC)
 

 
 
 

Channel 1 :33 3C 00 00 00 01 02 72
 

Channel 2 :33 3C 00 00 00 02 02 73
 

Channel 3 :33 3C 00 00 00 03 02 74
 

Channel 4 :33 3C 00 00 00 04 02 75
 

Channel 5 :33 3C 00 00 00 05 02 76
 

Channel 6 :33 3C 00 00 00 06 02 77
 

Channel 7 :33 3C 00 00 00 07 02 78
 

Channel 8 :33 3C 00 00 00 08 02 79
 
 

 
 

Instruction manual Please ask us after the purchase
 

 
 

Application

Remote control, remote measurement system;

Wireless meter ;
 

Smart Home,Home Automation ,Wiser Home;

Access control ;

Identification system ;

Data collection;

IT household appliance ;

Intelligence household appliance;

Baby monitoring system;
 

 
 

Typial application :
 

 
 

1 DC 12V control circuit,Wiring diagram below. ''LOAD'' may be LED lights, fans, motors and other DC 12V equipment
 

 
 

 

 
 

 
 

 
 

2 DC 1-48V 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 and other DC AC equipment
 

 
 

 

 
 

 
 

 
 

 
 

Test Software:(Only support win xp (32/62) win 7 (32/62) Operating System)
 

 

 
 

 

 


 

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