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SM 321 DI 16x24V DC

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

Model no

SM 321 DI 16x24V DC

Article No

H7 321-1BH02-0AA0


16-digital input, 24DC

Dimensions WxHxD(mm)


Product parameters Wiring diagram Relevant information
Specification parameters Model No.

SM 321 DI 16x24V DC

Article No. H7 321-1BH02-0AA0
Description 16-digital input, 24DC

Dimensions W x H x D

Power Consumption Typical value 3.5W
Backplane bus current 30mA
supply voltage DC24V
Front connector 20-pin
Digital input Number of Inputs 16
Input Type Sinking type
Input Voltage
Rated Value 24 VDC
Signal "0"  - 30 V to +5 V 
Signal "1" 13V to 30V
Input Current Typical value 7mA
Input Delay
  ."0" to "1" transition 1.2ms-4.8ms
  ."1" to "0" transition 1.2ms-4.8ms
Electrical isolation
Between channel group Support
Counting each group between channels 16
Between channel and backplane Support
Encoder Support
2-wire system sensor
Allowable static current Max. 1.5mA
Cable Length(Max)
  .Shield 500
  .Unshielded 300
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