Siemens Simatic S7-1200 SM1223 24VDC digital input and output unit 6ES72231BH320XB0

Features:

• Product Type Designation SM 1223, DI 8x24 VDC, DQ 8x24 VDC
• Supply voltage Nominal value (DC) 24 V - Permissible range, lower limit (DC) 20.4 V - Permissible range, upper limit (DC) 28.8 V
• Input current from the backplane bus DC 5 V, max. 145 mA
• Digital inputs from load voltage L+ (no load), max. 4 mA; per channel
• Transmitter supply voltage / header present
• Power loss, typ. 2,5 W
• Number of inputs 8 - in groups of 2.
  
  

Input voltage

• Input voltage type DC
• Nominal value (DC) 24 V
• for signal "0" DC 5 V at 1 mA
• for signal "1" DC 15 V at 2.5 mA.
  
  

Input current

• for signal "0", max. (permissible quiescent current) 1 mA
• for signal "1", min. 2.5 mA
• for signal "1", typ. 4 mA.
  
  

Digital outputs:

• Number of outputs: 8 in groups of 1
• Short circuit protection No; to be provided externally
• Limitation of opening inductive overvoltage on L+ (-48 V)
• Switching capacity of outputs: with ohmic load, max. 0.5 A - with lamp load, max. 5 W
• Output voltage: Nominal value (DC) 24 V
• for signal "0", max. 0.1 V; with 10 kOhm load
• for signal "1", min. DC 20 V.
  
  

Dimensions:

• Width 45 mm
• Height 100 mm
• Depth 75 mm
• Weight 210 g
• Housing material (front side) Plastic
• Front connector required
• IP20 degree of protection