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6ES7521-1BH50-0AA0 SIEMENS SIMATIC S7-1500 Digital input module DI 16x24VDC HF
| Place of Origin | U.K. |
| Brand Name | Siemens |
| Certification | COO & COC |
| Model Number | 6ES7521-1BH00-0AB0 |
SIEMENS S7-1500 digital input module
,16x24VDC high frequency DI module
,SIMATIC S7-1500 spare parts
6ES7521-1BH50-0AA0 SIEMENS SIMATIC S7-1500 Digital input module DI 16x24VDC HF
Siemens SIMATIC S7-1500 Digital input Module DI 16x24VDC HF (Order No. : 6ES7521-1BH50-0AA0) is a digital acquisition module for high-performance automation applications, specifically designed for industrial scenarios that require rapid response, high-precision signal processing, and in-depth diagnostic capabilities. This module provides 16 independent 24V DC input channels and supports input signal frequencies up to 1 kHz. It is suitable for tasks such as high-speed counting, pulse detection, encoder signal acquisition, and safety-related position monitoring.
Core Features
The DI 16x24VDC HF module adopts a source type (PNP) input design and is compatible with industrial standard 24VDC sensors. Each input channel can be independently configured as a regular switch input or high-speed counting mode (up to 1 kHz) without the need for additional hardware. All channels are equipped with adjustable input filtering times (0.05ms, 0.4ms, 1.6ms or 3.2ms), allowing users to flexibly optimize the response speed and anti-interference capability based on the on-site noise level and signal characteristics.
Technical parameters
| Module type | Digital Input Module (DI), high-performance type (HF) |
| Number of channels | 16 points, each channel is electrically isolated |
| Input voltage | 24V DC (allowable range 19.2V to 30V DC) |
| Input signal "1" threshold | ≥ 15 V DC |
| Input signal "0" threshold | ≤ 5 V DC |
| Typical input current | approximately 2.5 mA (at 24 V DC) |
| Optional input filtering time | 0.05ms / 0.4ms / 1.6ms / 3.2ms (software configurable) |
| Maximum input frequency | 1 kHz (for counting or pulse detection) |
| Counting function | Supports single-phase counting, period measurement, and frequency measurement (configuration required in TIA Portal) |
| Electrical isolation | Isolation between each channel and the backplane bus (test voltage 500 V AC) |
Product details pictures
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