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6ES7521-1BL00-0AB0

Siemens 6ES7521-1BL00-0AB0 High-Feature Digital Input

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  • Manufacturer: Siemens

  • Product No.: 6ES7521-1BL00-0AB0

  • Product Type: Digital Input Module

  • Product Origin: DE

  • Payment:T/T, Western Union

  • Weight: 260g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Siemens 6ES7521-1BL00-0AB0 S7-1500 Digital Input Module

The 6ES7521-1BL00-0AB0 is a SIMATIC S7-1500 digital input module. This High Feature (HF) module has 32 channels for 24V DC signals. It supports high-speed counting and advanced diagnostics for precise control.

Key Technical Specifications

  • Brand & Model: Siemens 6ES7521-1BL00-0AB0 (DI 32x24VDC HF)
  • Number of Inputs: 32 digital channels, in groups of 16
  • Input Voltage: 24V DC nominal (19.2V - 28.8V range)
  • Input Type: IEC 61131, Type 3 (sink/source)
  • Input Delay: Configurable from 0.05 ms to 20 ms
  • High-Speed Counters: 2 channels, up to 6 kHz, 32-bit width
  • Power Loss: Typical 4.2 W

Features, Dimensions & Integration

  • Key Features: Hardware interrupts, wire-break diagnosis, supply voltage monitoring.
  • Connection: Front connector (screw or push-in) ordered separately.
  • Cable Length: Up to 1000 m shielded, 600 m unshielded.
  • Dimensions: 35 mm x 147 mm x 129 mm (W x H x D)
  • Weight: Approximately 260 grams
  • Operating Temperature: -30°C to +60°C (horizontal mount)

Frequently Asked Questions

  • Q: What are the main functions of this module?
    A: It reads 32 digital signals. It also works as two high-speed counters. It sends alarms for errors or process events.
  • Q: What is needed for installation?
    A: You need a separate front connector. The module snaps onto an S7-1500 rack. Use TIA Portal for configuration.
  • Q: Can it connect to 2-wire sensors?
    A: Yes. It supports 2-wire sensors with a max 1.5 mA quiescent current. It has reverse polarity protection.
🏷️ Tags: Digital Input Module
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