ITEM NAME:4 Channel DC 12V RS485 Relay Module Modbus RTU and AT Command Remote Contro B6J3 ☆★ Product Details ★☆ 4 Channel DC 12V RS485 Relay Module Modbus RTU and AT Command Remote Contro B6J3 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 Application:Automated industry PLC;Smart Home,Home Automation ,Wiser Home;Identification system; 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" 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: 80 * 47 * 19.5mm 9: Weight: 57g 10: Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC the new version adds the Read Status command (command 03) Motor FW and 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 ca
