Technical Summary
| Product type designation | DI 16×24 … 125 V UC HF |
|---|---|
| Number of digital inputs | 16 |
| Input voltage, rated value (DC) | 24 V; 48 V, 125 V |
| Input voltage, rated value (AC) | 24 V; 48 V, 125 V (50 – 60 Hz) |
| Input delay | 0.05..20 ms |
| Input type | 3 (IEC 61131) |
| Diagnostics function | Yes |
| Hardware interrupt | Yes |
| Front connector | Screw terminals or push-in |
| Power consumption from the backplane bus | 1.2 W |
| Power loss, typ. | 2.2 W; At 24 V DC; 6.0 W at 125 V AC |
Key Features
SIMATIC S7-1500 digital input module
Digital input module DI 16x 24…125 V UC HF for the SIMATIC S7-1500 range.
Digital input module DI 16x 24…125 V UC HF for the SIMATIC S7-1500 range.
16 digital input channels
16 channels in groups of 1.
16 channels in groups of 1.
Adjustable input delay
Input delay: 0.05..20 ms.
Input delay: 0.05..20 ms.
Input type 3
Input type 3 (IEC 61131).
Input type 3 (IEC 61131).
Diagnostics and hardware interrupts
Diagnostics and hardware interrupts are supported.
Diagnostics and hardware interrupts are supported.
Front connector ordered separately
Front connector: screw terminals or push-in.
Front connector: screw terminals or push-in.
Applications
Digital input signal acquisition
Acquires 16 digital input signals in the 24…125 V UC HF range.
Acquires 16 digital input signals in the 24…125 V UC HF range.
Counter input processing
Supports counter operation for digital input tasks, from V1.1.0 and only in DC operation.
Supports counter operation for digital input tasks, from V1.1.0 and only in DC operation.
Frequently Asked Questions
What is the exact model designation of Siemens 6ES7521-7EH00-0AB0?
Product type designation: DI 16×24 … 125 V UC HF.
How many digital inputs does 6ES7521-7EH00-0AB0 have?
It has 16 digital inputs.
What input voltage does 6ES7521-7EH00-0AB0 support?
Rated input voltage is 24 V, 48 V, and 125 V for DC, and 24 V, 48 V, and 125 V (50 – 60 Hz) for AC.
What connector is used for the front connection on 6ES7521-7EH00-0AB0?
The front connector is ordered separately and is available with screw terminals or push-in.
