6ES7321-7TH00-0AB0

Overview

• Model: 6ES7321-7TH00-0AB0

• Type: Digital Input Module

• Number of Digital Inputs: 16

• Input Characteristic Curve: IEC 61131 Type 2 compliant (not Type 1)

Electrical Specification

• Input Current:

  • From load voltage L+: Max. 100 mA (without load)

  • From backplane bus (5 VDC): Max. 100 mA

• Power Loss: Typ. 11 W

• Input Voltage (DC): Rated 8.2 V; supports 8.2 V / 18 V

• Input Current for Signal “1”:

  • Typical: 10 mA

  • NAMUR sensors: 2.1–7 mA

  • 10kΩ / 47kΩ contact: Typical 10 mA

  • 4-wire BEROs: Typical 10 mA

Performance Specification

• Time Stamping Accuracy: 1 ms

• Number of Simultaneously Controllable Inputs:

  • Horizontal installation: Up to 16 (≤60 °C)

  • Vertical installation: Up to 16 (≤40 °C)

Isolation

• Isolation Tested With: 600 VDC

• Permissible Potential Difference: Supported

Environmental Specification

• Ambient Operating Temperature: 0–60 °C

• Extended Ambient Conditions: Cold restart at 0 °C

Mechanical Specification

• Connection Method: 1 × 40-pin front connector required

• Dimensions:

  • Width: 40 mm

  • Height: 125 mm

  • Depth: 120 mm

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