Smart Systems Products

Extend DI/DO Module-MDDIDO-16/MDDIDO-1S

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  • 16 digital inputs+16 relay output
  • Built-in LED status indicators for each input and output points.
  • 4 voltage detection and 2 current detection
  • Remote firmware upgradable
  • Watchdog feature for halting operation of unknown causes and reverting to normal operation condition after problem solved.
  • RS485 communication interface and the maximum distance to the controller is 1KM.
  • Capability of connecting external backup power supply for emergency.


Spec\Model MDDIDO-16 MDDIDO-1S
Digital input NV input x16 NV input x4
Digital output Relay output x16 Relay output x2
LED status 16 + 2 LED 3 LED
Communication RS485 / USB RS485
Analog input 0~30V voltage detection x4  –
0~20 mA current detection x2
Wiegand input 8組Wiegand input (option)  –
Operating Temperature -20℃~70℃
size (mm) 9 ~28 VDC 8V~15VDC
尺寸(mm) 115W x 115H x 30D 75W x 115H x 22D

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