Support S7-400H redundant system · Support online hot swap · Support STEP7 and TIA Portal · Support I O redundancy (only one domestic compatible) · Support power failure, short circuit, open circuit system diagnosis function (the most compatible in domestic )

Seamless connection

Easy to use

Flexible configuration

High cost effective

SM322 DO16x24V DC

16-digital output,24VDC, Front connector 20-pin, Typical value 4.9W

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SM 321 DI 16x24V DC

16-digital input, 24DC, Front connector 20-pin, Typical value 3.5W

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SM 321 DI 32x24V DC

32-digital input, 24VDC, Front connector 40-pin,Typical value 6.5W

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SM331 8AI Full Function Type

8-channel analog input, full function temperature measurement module,External mechanical range switch,Current input with overcurrent protection,Resolution is 14 bits

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SM331 8AI Current/Voltage/RTD

8-chanel analog input，Current/voltage/RTD module，Resolution 13 bits

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