DC 12V/24V 20Ch Multifunction RS485 Relay Board 20DO 2DI 2AI PLC IO Expanding Module Modbus RTU 4-20MA 0-10V Relay Module Specification: DC 12V (12V Version),DC 24V (24V Version) Standby current (all relays closed) 14MA, 1 relay open 40MA, 2 relays open 69MA, 3 relays open 95MA,4 relays open 122MA,5 relays open 149MA,6 relays open 174MA, 7 relays open 200MA,8 relays open 226MA,and so on 2-channels digital input (PNP active high), 1-channel 0-20MA current analog input, 1-channel 0-10V voltage analog input, 20 channels 10A relay switch outputs Support standard Modbus RTU command, function code: Command 1 (default): write 06/16 read/03; Command 2 (solder M0 jumper): write 05/06/15/16 read 01/02/03/04 With hardware Reset function, with TVS anti-surge protection Under the MODBUS command mode, it can support up to 64 devices in parallel The default baud rate is 9600BPS. The baud rate can be selected by Conmand 2400 4800 9600 19200 38400 57600 115200BPS The parity can be none parity, even parity and odd parity The data sending and returning time can be set,with a maximum value of 1000ms Size: 243*82*40mm(with Din Rail Box) 272g(with Din Rail Box) Maximum load: 10A / 250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC Upgraded Features: Command 1 supports 03 06 16 MODBUS RTU function code Command 2 supports 01 02 03 04 05 06 16 function code (M0 short circuit) Support more baud rates, can modify the parity bit Hardware reset to factory settings (RESET jumper) Upgraded relays (more durable) TVS anti-surge protection DIN rail Box parameters: Product model: UM72 Color: Green Width: suitable for PCB board width UM72(72mm) Insulation grade: flame-retardant VO grade Backplane length: suitable for 239 mm PCB boards Net weight: 160g Installation: DIN35 and C45 rail Application: PLC IO expansion board Smart Home,Home Automation ,Wiser Home; PTC Camera Security Monitoring Identification system; IP Camera LED Lamp Drivers Automatic curtain control Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 1-3cm differences due to manual measurement. Package Includes: 1x RS485 Relay Board