6ES7421-1BL01-0AA0

Overview

6ES7421-1BL01-0AA0 is a SIMATIC S7-400 digital input module, SM 421, with 32 isolated digital inputs (24 V DC).

Specifications

• Input current (from backplane bus): Max. 20 mA
• Power loss: Typ. 6 W

Digital Inputs

• Number of digital inputs: 32
• Input characteristic: According to IEC 61131 Type 1
• Simultaneously controllable inputs: 32
• Input voltage:
  • Rated value: 24 V DC
  • Signal "0": -30 V DC to +5 V DC
  • Signal "1": 13 V DC to 30 V DC
• Input current:
  • For signal "0" (max. permissible quiescent current): 1.3 mA
  • For signal "1" (typ.): 7 mA

Input Delay

• At "0" to "1": Min. 1.2 ms, Max. 4.8 ms
• At "1" to "0": Min. 1.2 ms, Max. 4.8 ms

Cable Length

• Shielded: Max. 1,000 m
• Unshielded: Max. 600 m

Dimensions

• Width: 25 mm
• Height: 290 mm
• Depth: 210 mm

Weight

• Weight: Approx. 500 g

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