Technical Summary
| Product type designation | DI 16xNAMUR HF |
|---|---|
| Product lifecycle | Active Product |
| Digital inputs | 16; NAMUR |
| Channel groups | 16 channels in groups of 8 |
| Encoder supply | 16; 2x 8.2 V DC |
| NAMUR encoder supply | 8.2 V |
| Rated value (DC) | 24 V |
| Permissible range, lower limit (DC) | 19.2 V |
| Permissible range, upper limit (DC) | 28.8 V |
| Current consumption, max. | 220 mA |
| Power consumption from the backplane bus | 0.6 W |
| Power loss, typ. | 3.7 W |
Applications
For connecting 8.2 V NAMUR encoder signals to the module’s digital inputs.
For counting signals with the integrated counting function up to 20 kHz and parameterizable pulse stretching.
For using signal inversion diagnostics, chatter monitoring, and hardware interrupt functions in the input circuit.
Key Features
Digital input module with 16 channels in groups of 8.
Sensor supply is 8.2 V, with 16 outputs and short-circuit protection.
Integrated counting function up to 20 kHz, pulse stretching, chatter monitoring, signal inversion diagnostics, and hardware interrupts.
Front connector with screw terminals or push-in is ordered separately.
Frequently Asked Questions
What is Siemens 6ES7521-7TH00-0AB0?
It is a SIMATIC S7-1500 digital input module, DI 16xNAMUR HF.
How many input channels does 6ES7521-7TH00-0AB0 have?
It has 16 channels in groups of 8.
What encoder supply does this module provide?
The module provides 8.2 V NAMUR encoder supply, with 16 outputs and short-circuit protection.
What key operating values are listed for 6ES7521-7TH00-0AB0?
Rated value (DC) is 24 V, with a permissible range of 19.2 V to 28.8 V and a maximum current consumption of 220 mA.
What accessories are needed for the front connection?
The front connector with screw terminals or push-in is ordered separately.
