DC 12V 24V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port DIN35 Rail Board for PLC LED Home Automation Door Lock Features: 1: Wide range of applications 2: 20A high current relay 3:Network port/ RS485 port is optional 4: Support more baud rate, can modify the parity bit 5: Easy to use Specifications: 1. DC 12V (12V version), DC 24V (24V version) 2. Standby current (all relays closed) 15MA, 1 relay off 85MA, 2 relays off 156MA, 3 relays off 227MA, 4 relays off 299MA, 5 relays off 369MA, 6 relays off 439MA, 7 relays off 510MA, 8 relays off 582MA. each relay needs 70MA of drive current for each relay. 3. Old commands (default): "Open" "Close" "Momentary" "Self-lock" "interlock" "delay" 6 commands 4. The old MODBUS command (default) supports 03 06 16 function codes. 5. MODBUS new command (M0 welding) supports 01 03 05 06 16 function code 6. MODBUS commands can be accessed via serial super terminal (serial assistant) or "MODBUS polling". 7. In MODBUS command mode, it can support up to 64 devices in parallel 8. default baud rate is 9600BPS. baud rate can be set by command: 2400 4800 9600 19200 38400 57600 115200 bps 9. Checking method can be no parity, even parity, odd parity 10. Can set the data sending and returning time, the maximum value is 1000 milliseconds 11. Size: 310 * 122 * 25mm (PCB only); 320 * 132 * 46mm (with Din rail box) 12. Weight: 1000g (PCB only); 1100 (with Din rail box) 13. Maximum load: 20A/250V AC, 20A/125V AC, 20A/30V DC, 20A/28V DC, 20A/12V DC Note: The driving power of each relay is 0.9 watts, all 32 relays require a 28.8 watt power adapter Upgrade Function: 20A high current relays Network Port / RS485 Port Network port reset to factory settings TVS anti-surge protection MODBUS RTU old command 03 06 16 MODBUS RTU new command 01 05 03 06 16 Support for more baud rates, possibility to modify parity bits Applications: PLC IO expansion boards Smart home, home automation, smart home. PTZ cameras Security monitoring Identification systems. IP camera LED light driver Automatic curtain control Package Included: 1* Relay board