Product Overview
Technical Summary
| Product type | DI 16x24VDC HF |
|---|---|
| Digital inputs | 16 |
| Counter inputs, max. | 2 |
| Counting frequency, max. | 6 kHz |
| Rated input voltage | 24 V DC |
| Input delay | 0.05 ms to 20 ms |
| Supply voltage, rated | 24 V DC |
| Supply voltage, permissible range | 19.2 V to 28.8 V DC |
| Firmware version | V2.2.0 |
| Product lifecycle | Active Product |
| Front connector | Screw terminals or push-in; ordered separately |
Key Features
16 digital inputs in groups of 16; all 16 inputs can be simultaneously controllable.
24 V DC rated input voltage with a permissible range of -30 to +30 V for counter input signals.
2 inputs can be used as counters, with a maximum counting frequency of 6 kHz and 32-bit counting width.
Input delay is parameterizable from 0.05 ms to 20 ms; positive-edge and negative-edge evaluation are supported.
Diagnostics and hardware interrupts are supported. The front connector with screw terminals or push-in terminals is ordered separately.
Frequently Asked Questions
What is the exact product type of 6ES7521-1BH00-0AB0?
It is a SIMATIC S7-1500 digital input module with product type designation DI 16x24VDC HF.
How many digital and counter inputs does the module have?
It has 16 digital inputs, and 2 inputs can be used as counters.
What is the maximum counter frequency?
The maximum counting frequency is 6 kHz, with a counting width of 32 bit.
What front connector is included with the module?
The front connector is not included; a connector with screw terminals or push-in terminals is ordered separately.
