DC 24V 1-8Ch Digital Switch DiDo Multifunction RS485 PLC IO Expanding Board Standard Modbus RTU Relay Module

1. DC 24V (12V Version Click here) ​ ​

2. Standby current (all relays closed) 11MA, 1 relay open 30MA, 2 relays open 49MA, 3 relays open 65MA,4 relays open 82MA,5 relays open 101MA,6 relays open 120MA, 7 relays open 138MA,8 relays open 156MA ​ ​

3. 1/2/4/8 photoelectric isolation Input ports (NPN low level active ). ​ ​The input-output relationship can be set to various association modes through instructions (Self-lockingdefault)/Interlock/Momentary/Interlock/Output=Input) ​ ​

4. Support standard Modbus RTU command, function code, write 05/06/15/16 read 01/02/03 ​ 

​5. With hardware reset function, with TVS anti-surge protection ​ ​

6. ​1/2/4/8 opto-isolated inputs (NPN), ​1/2/4/8 relay outputs (upgraded relays, more durable) ​ ​

7. MODBUS commands can be made serial HyperTerminal (serial assistant) OR ''Modbus Poll''Enter; ​ 

​8. Under the MODBUS command mode, it can support up to 64 devices in parallel ​ ​

9. The default baud rate is 9600BPS. The baud rate can be selected by Conmand 2400 4800 9600 19200 38400 57600 115200BPS ​ ​

10. The parity can be none parity, even parity and odd parity ​ 

​11. The data sending and returning time can be set,with a maximum value of 1000ms ​ ​

12. Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 24VDC, 10A / 12VDC ​ ​

1 Channel ​Size: 45 * 72 * 19mm(Only PCB Board);47 * 82*40mm(with Din Rail Box) ​Weight: 33g(Only PCB Board);75g(with Din Rail Box) ​ ​ ​

2 Channels ​Size: 60 * 72 * 19mm(Only PCB Board);62 * 82*40mm(with Din Rail Box) ​Weight: 48.5g(Only PCB Board);100g(with Din Rail Box) ​ ​

4 Channels ​Size: 93 * 72 * 19mm(Only PCB Board);95 * 82*40mm(with Din Rail Box) ​Weight: 80.6g(Only PCB Board);150.7g(with Din Rail Box) ​ ​

8 Channels ​Size: 136 * 72 * 12mm(Only PCB Board);138 * 82*40mm(with Din Rail Box) ​Weight: 143g(Only PCB Board);239g(with Din Rail Box)

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MODBUS RTU Function Code 01 05 15 02 03 06 16 ​ ​

Support more input-output relationships ​ ​

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 ​

Width: suitable for PCB board width UM72(72mm) 

​Insulation grade: flame-retardant VO grade ​

Backplane length: suitable for 45/60/93/136 mm 

PCB boards ​Net weight: 41/51/71/99g ​

Installation: DIN35 and C45 rail