Product Name: DC 5V 2 Channel RS485 Relay Board UART Serial port Switch Module Modbus AT command Control for PLC Smart Home automated industry

Description:

1. DC 5V power supply
2. Standby current (all relays closed) 10-11MA, 1 relay open 80MA, 2 relays open 153MA
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 32 devices in parallel
8. Size: 79 * 47.5 * 19.5mm (excluding shell);
9. Weight: 40 g (excluding shell);
10. Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC

the new version adds the Read Status command (command 03)

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

Instruction manual Please ask us after the purchase