6ES7331-7KF02-0AB0 Siemens SM 331 Analog Input 8 AI

6ES7331-7KF02-0AB0 | SIMATIC S7-300 SM 331 Analog Input Module

Key Technical Specifications

• Brand & Series: Siemens SIMATIC S7-300 SM 331.
• Product Type: 8-channel isolated analog input module.
• Number of Inputs: 8 analog inputs (4 for resistance measurement).
• Resolution: 9/12/14 bits with overrange (15 bits max).
• Input Ranges (Voltage): ±80 mV, ±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, ±10 V, 1 V to 5 V.
• Input Ranges (Current): 0–20 mA, 4–20 mA, ±3.2 mA, ±10 mA, ±20 mA.
• Thermocouple Types: E, J, K, L, N (with internal/external compensation).
• Resistance Thermometer: Pt100, Ni100 (standard and climatic ranges).
• Resistance Ranges: 0–150 Ω, 0–300 Ω, 0–600 Ω.
• Integration Time: configurable (2.5 / 16.67 / 20 / 100 ms).
• Interference Suppression: 400 / 60 / 50 / 10 Hz.
• Cable Length (shielded): max. 200 m (50 m for 80 mV and thermocouples).
• Power Loss: typ. 1 W.
• Dimensions (W x H x D): 40 mm x 125 mm x 117 mm.
• Weight: approx. 250 g.

Frequently Asked Questions (FAQ)

• Q: Is this module brand new and original?
  A: Yes, we supply only brand new, original Siemens SIMATIC SM 331 modules.
• Q: What is the maximum resolution of this module?
  A: The 6ES7331-7KF02-0AB0 provides up to 14 bits (15 bits with overrange).
• Q: Does it support thermocouple type K?
  A: Yes, it supports thermocouple types E, J, K, L, and N.
• Q: Can I use this module with Pt100 sensors?
  A: Yes, it supports Pt100 (standard and climatic range) and Ni100.
• Q: What is the maximum cable length for thermocouple inputs?
  A: For thermocouple and 80 mV ranges, the maximum shielded cable length is 50 m.
• Q: Does it have diagnostic functions?
  A: Yes, it provides configurable diagnostic alarms and a group error LED.
• Q: What is the typical power loss?
  A: Typical power loss is 1 W.
• Q: Is the front connector included in the package?
  A: No, the 20-pin front connector is sold separately.
• Q: Does it support 4-wire resistance measurement?
  A: Yes, it supports 2-wire, 3-wire, and 4-wire resistance connections.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

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