Key Features
- DI 16xNAMUR HF: Digital input module with 16 channels in groups of 8.
- 8.2 V NAMUR encoder support: Specified for 8.2 V NAMUR encoder and sensor supply 8.2 V.
- Integrated counting function: Integrated counting function up to 20 kHz pulse stretching.
- Diagnostics and interrupts: Includes chatter monitoring, signal inversion diagnostics, and hardware interrupts.
- Front connector order: Front connector with screw terminals or push-in is ordered separately.
Technical Summary
| Product type designation | DI 16xNAMUR HF |
|---|---|
| Number of digital inputs | 16; NAMUR |
| Channels | 16 channels in groups of 8 |
| Supply voltage | 24 V |
| Permissible supply voltage range | 19.2 V to 28.8 V |
| Input voltage | 8.2 V |
| Current consumption, max. | 220 mA |
| Power consumption from the backplane bus | 0.6 W |
| Power loss, typ. | 3.7 W |
| Counter – Counting frequency, max. | 20 kHz; See manual for details |
| Counter – Number, max. | 4; 4 counters max. 10 kHz or 2 counters max. 20 kHz + 2 counters max. 10 kHz; see manual for details |
| Front connector | screw terminals or push-in |
Applications
- 8.2 V NAMUR encoder signal input: For receiving signals from 8.2 V NAMUR encoders.
- High-speed pulse counting: For counting pulse signals with integrated counting function up to 20 kHz.
Frequently Asked Questions
What is the exact Siemens model and module type of 6ES7521-7TH00-0AB0?
It is a SIMATIC S7-1500 digital input module, DI 16xNAMUR HF.
How many inputs does the 6ES7521-7TH00-0AB0 have?
It has 16 digital inputs for NAMUR signals, arranged in groups of 8.
What supply voltage does the 6ES7521-7TH00-0AB0 use?
The rated supply voltage is 24 V, with a permissible range of 19.2 V to 28.8 V.
What are the key counting specifications for this module?
The module supports an integrated counting function up to 20 kHz, with up to 4 counters.
What connection detail should be confirmed before ordering this module?
The front connector is ordered separately and is available with screw terminals or push-in.
