Product information
Overview
Key Features
- Digital input capacity: 16 digital inputs with 24 V DC rated input voltage, parameterization, and IEC 61131 type 3 input characteristics.
- Counter function: 2 inputs can be used as counters with a maximum counting frequency of 6 kHz and 32 bit counting width.
- Input delay: Parameterizable delay values for standard inputs are 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms.
- Diagnostics and interrupts: The module has diagnostics, diagnostic alarms, hardware interrupts, supply-voltage monitoring, wire-break detection to I < 350 μA, and status LEDs.
- Supply voltage: Rated DC supply voltage is 24 V, with a permissible range from 19.2 V to 28.8 V and reverse polarity protection.
- Front connector configuration: A front connector with screw terminals or push-in terminals is ordered separately.
Technical Summary
| Product type designation | DI 16x24VDC HF |
|---|---|
| Number of digital inputs | 16 |
| Counter inputs, max. | 2 |
| Counting frequency, max. | 6 kHz |
| Rated input voltage (DC) | 24 V |
| Permissible input voltage range | 19.2 V to 28.8 V |
| Input delay | 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms |
| Firmware version | V2.2.0 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What is the exact product type of Siemens 6ES7521-1BH00-0AB0?
It is a SIMATIC S7-1500 digital input module with the product type designation DI 16x24VDC HF.
How many digital inputs does the module have?
It has 16 digital inputs in groups of 16; 2 inputs can be used as counters.
What counter performance does it provide?
The maximum counting frequency is 6 kHz, and the counting width is 32 bit.
What front connector is included with the configuration?
It is without a front connector; a front connector with screw terminals or push-in terminals is ordered separately.
