Product Description
Key Features
- Exact product identity: SIPLUS S7-1500 DI 16x24VDC HF module based on 6ES7521-1BH00-0AB0.
- Digital input capacity: 16 parameterizable digital inputs in groups of 16, with IEC 61131 type 3 input characteristics.
- Input performance: Input delay is parameterizable from 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms; standard-input delay is 0.05 ms to 20 ms.
- Supply and consumption: Rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC; maximum current consumption is 20 mA.
- Counter and diagnostics: Supports up to 2 counters with a maximum counting frequency of 6 kHz and 32-bit counting width; diagnostics, diagnostic alarms and hardware interrupts are supported.
- Environmental configuration: Has conformal coating and a -40…+70 °C range, with OT4 and ST1/2 (+85 °C for 10 minutes).
Applications
- Digital signal input: Provides 16 digital inputs for signals with a rated input value of 24 V DC.
- Counter operation: Supports up to 2 counters with a maximum counting frequency of 6 kHz and up/down counting direction.
- Input diagnostics: Supports supply-voltage monitoring, wire-break diagnostics to I < 350 μA, diagnostic alarms and hardware interrupts.
Technical Summary
| Product type | DI 16x24VDC HF |
|---|---|
| Order number | 6AG2521-1BH00-4AB0 |
| Base module | 6ES7521-1BH00-0AB0 |
| Digital inputs | 16; parameterizable; groups of 16 |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 19.2 V to 28.8 V DC |
| Input delay | 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms |
| Counter | 2 max.; 6 kHz max.; 32 bit |
| Protection and diagnostics | Conformal coating; supply-voltage monitoring; wire break to I < 350 μA; short-circuit: No |
| Lifecycle | Active Product |
Frequently Asked Questions
What exact Siemens model is this digital input module?
It is Siemens 6AG2521-1BH00-4AB0, SIPLUS S7-1500 DI 16x24VDC HF, based on 6ES7521-1BH00-0AB0.
How many digital inputs does it have?
It has 16 parameterizable digital inputs in groups of 16.
What supply voltage should be confirmed?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
Does it support counter operation?
Yes. It supports up to 2 counters, a maximum counting frequency of 6 kHz, 32-bit counting width, and up/down counting.
What configuration details should be confirmed for a legacy-part inquiry?
Confirm the exact order number, base module 6ES7521-1BH00-0AB0, installed input configuration, quantity, destination, condition preference and requested date.
