Technical Summary
| Product type designation | DI 16x24VDC HF |
|---|---|
| Product lifecycle | Active Product |
| Digital inputs | 16 |
| Counter inputs | 2 |
| Counting frequency, max. | 6 kHz |
| Supply voltage, rated value (DC) | 24 V |
| Supply voltage, permissible range, lower limit (DC) | 19.2 V |
| Supply voltage, permissible range, upper limit (DC) | 28.8 V |
| Input current, max. | 20 mA |
| Power consumption from the backplane bus | 1.1 W |
| Power loss, typ. | 2.6 W |
| Front connector | screw terminals or push-in |
Applications
For receiving 24 V DC digital inputs on a 16-channel module.
For using 2 inputs as counters with a maximum counting frequency of 6 kHz.
For diagnostics, diagnostic alarms, hardware interrupts, and supply-voltage monitoring.
Key Features
Digital input module with 16 channels and 2 byte input address space.
Of the 16 inputs, 2 inputs can be used as counters with a maximum counting frequency of 6 kHz.
Includes diagnostics, diagnostic alarm, hardware interrupt, and supply-voltage monitoring.
Rated value 24 V DC with permissible range from 19.2 V to 28.8 V and reverse polarity protection.
Front connector with screw terminals or push-in is to be ordered separately.
Product lifecycle: Active Product.
Frequently Asked Questions
What is Siemens 6ES7521-1BH00-0AB0?
It is a SIMATIC S7-1500 digital input module, DI 16x24VDC HF.
How many inputs does 6ES7521-1BH00-0AB0 have?
It has 16 digital inputs, and 2 inputs can be used as counters.
What supply voltage does the module use?
The rated supply voltage is 24 V DC, with a permissible range from 19.2 V to 28.8 V.
Is the front connector included with 6ES7521-1BH00-0AB0?
No. The front connector with screw terminals or push-in is ordered separately.
