Product Overview
Applications
Counts pulses with a maximum counting frequency of 20 kHz and supports up/down counting.
Processes NAMUR input signals with parameterizable delay, pulse extension, edge evaluation, and chatter monitoring.
Provides wire-break monitoring, supply-voltage monitoring, encoder power-supply monitoring, diagnostic alarms, and hardware interrupts.
Technical Summary
| Product type | DI 16xNAMUR HF |
|---|---|
| Digital inputs | 16; NAMUR |
| Rated supply | 24 V DC |
| Permissible supply range | 19.2 V to 28.8 V DC |
| NAMUR encoder supply | 16 outputs; 2x 8.2 V DC |
| Maximum counting frequency | 20 kHz; see manual for details |
| Input delay | 0.05 to 20 ms |
| Maximum current consumption | 220 mA |
| Front connector | Screw terminals or push-in terminals, ordered separately |
| Product lifecycle | Active Product |
Key Features
16 parameterizable NAMUR digital inputs; all 16 inputs can be controlled simultaneously.
16 outputs in 2 groups of 8.2 V DC; maximum output current is 100 mA per group and 200 mA per module.
Up to 4 counters; maximum counting frequency is 20 kHz, with 4 counters at max. 10 kHz or 2 counters at max. 20 kHz + 2 counters at max. 10 kHz; see manual for details.
Parameterizable input delay from 0.05 to 20 ms; pulse extension settings are 0.05 s, 0.1 s, 0.2 s, 0.5 s, 1 s, or 2 s.
Rated supply is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC and reverse polarity protection.
All necessary components for shielding are included; the front connector with screw terminals or push-in terminals is ordered separately.
Frequently Asked Questions
What is the exact configuration of Siemens 6ES7521-7TH00-0AB0?
It is a SIMATIC S7-1500 digital input module DI 16xNAMUR HF with 16 NAMUR channels, 8.2 V sensor supply, counting up to 20 kHz, and a 32-bit counting width.
What supply voltage does this module require?
The rated supply is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
What is included with the module?
All necessary components for shielding are included. The front connector with screw terminals or push-in terminals is ordered separately.
How should this line item be included in a project quotation?
Provide the requested quantity, destination, schedule context, and any additional BOM lines for quotation review.
