Technical Summary
| Product type designation | DI 16x24VDC HF |
|---|---|
| Number of digital inputs | 16 |
| Counter inputs | 2 |
| Counting frequency, max. | 6 kHz |
| 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 delay | 0.05..20 ms |
| Input characteristic curve in accordance with IEC 61131, type 3 | Yes |
| Diagnostics function | Yes |
| Hardware interrupt | Yes |
| Front connector | screw terminals or push-in |
Key Features
SIMATIC S7-1500 digital input module
DI 16×24 V DC HF module for the SIMATIC S7-1500 platform.
DI 16×24 V DC HF module for the SIMATIC S7-1500 platform.
16 digital inputs
16 channels in groups of 16 with digital inputs parameterizable.
16 channels in groups of 16 with digital inputs parameterizable.
Counter-capable inputs
2 inputs can be used as counters, with a maximum counting frequency of 6 kHz.
2 inputs can be used as counters, with a maximum counting frequency of 6 kHz.
Diagnostics and interrupts
Diagnostics function, diagnostic alarm, and hardware interrupt support.
Diagnostics function, diagnostic alarm, and hardware interrupt support.
Front connector ordering
Front connector with screw terminals or push-in is ordered separately.
Front connector with screw terminals or push-in is ordered separately.
Applications
24 V DC digital input acquisition
For acquiring 24 V DC digital input signals on 16 channels.
For acquiring 24 V DC digital input signals on 16 channels.
Counter input use
For using 2 inputs as counters with a maximum counting frequency of 6 kHz.
For using 2 inputs as counters with a maximum counting frequency of 6 kHz.
Frequently Asked Questions
What is 6ES7521-1BH00-0AB0 in the SIMATIC S7-1500 range?
It is a SIMATIC S7-1500 digital input module with the product type designation DI 16x24VDC HF.
How many digital inputs does 6ES7521-1BH00-0AB0 have?
It has 16 digital inputs.
Can 6ES7521-1BH00-0AB0 be used for counter inputs?
Yes. 2 inputs can be used as counters, and the maximum counting frequency is 6 kHz.
What supply voltage does 6ES7521-1BH00-0AB0 use?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
Does 6ES7521-1BH00-0AB0 support diagnostics and hardware interrupts?
Yes. It includes diagnostics function and hardware interrupt support.
