N4D3E16 DC 12V 24V 16 In 16 Out Rs485 Remote Control Switch Plc Io Expansion Board Modbus Rtu Module1xDC 12V 24V 16CH Input & 16ch Output Rs485 Modbus Rtu Module6 Photoelectrically Isolated Input Ports (Npn Active Low Level)Application: Plc Io Expansion Board, Smart Home, Home Automation, Smart Home; Ptc Camera, Security Monitoring, Identification System; Network Camera, Led Light Driver, Automatic Curtain Control,Modbus Rtu Instruction, Supports 03 06 Function Code (Some Registers Support 16 Function Code)Description: 1. Working voltage: DC 6.5-30V (7.5V 9V 12V 15V 24V)2. Working current: 8-50MA3. 16 photoelectrically isolated input ports (NPN active low level)4. 16 channels of Darlington output (ULN2803 NPN output)5. "Open" "Close" "Instant" "Self-locking" "Interlocking" "Delay" 6 commands6. 16 inputs can remotely control the 16 outputs of another board through the RS485 bus (relevant registers need to be set)7. MODBUS RTU instruction, supports 03 06 function code (some registers support 16 function code)8. Under the "Delay" command, the maximum delay is 255 seconds; 9. The MODBUS command can be executed in the serial port hyper terminal (serial port assistant) OR "Modbus Poll" and press Enter; 10. In MODBUS command mode, up to 64 devices can be supported in parallel.11. The Default baud rate is 9600BPS. Baud rate can be selected by jumper: 2400 4800 9600 19200BPS12. Maximum load: The maximum load current of each channel is 300MADIN rail box parameters: 1. Product model: UM722. Installation method: DIN35 and C45 guide rail3. Width: Suitable for PCB board width UM72 (72mm)4. Insulation level: flame retardant VO level5. Backplane length: suitable for 100 mm PCB boardNote: Different Batches May Have Differences In P