Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | DI 16x24VDC HF |
| Digital input channels | 16 |
| Channel grouping | 16 channels in 1 group |
| Rated input voltage | 24 V DC |
| Input voltage for signal "0" | -30 to +5 V |
| Input voltage for signal "1" | +11 to +30 V |
| Maximum counter inputs | 2 |
| Maximum counting frequency | 6 kHz |
| Input delay | 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms |
| Supply voltage range | 19.2 V to 28.8 V DC |
| Front connector | Screw terminals or push-in; ordered separately |
Applications
- Digital signal acquisition: Acquires digital input signals through 16 parameterizable channels.
- Counter signal acquisition: Uses up to 2 inputs for counter functions with a maximum counting frequency of 6 kHz.
Key Features
- Digital input channels: 16 parameterizable digital inputs in 1 group; all 16 inputs can be controlled simultaneously.
- Input signals: Rated input voltage is 24 V DC; signal "0" is -30 to +5 V and signal "1" is +11 to +30 V.
- Counter function: 2 inputs can be used as counters, with a maximum counting frequency of 6 kHz and 32 bit counting width.
- Input timing: Input delay is parameterizable at 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms; positive-edge and negative-edge evaluation are supported.
- Diagnostics and interrupts: The module has diagnostics, diagnostic alarms, hardware interrupts, supply-voltage monitoring, wire-break detection to I < 350 μA, and channel and module diagnostic LEDs.
- Supply and connection: Rated supply voltage is 24 V DC with a permissible range of 19.2 V to 28.8 V and reverse-polarity protection. The front connector with screw terminals or push-in connection is ordered separately.
Frequently Asked Questions
1. How many digital inputs does 6ES7521-1BH00-0AB0 have?
It has 16 parameterizable digital inputs in 1 group, and all 16 inputs can be controlled simultaneously.
2. What input voltage signals are supported?
The rated input voltage is 24 V DC. Signal "0" is -30 to +5 V, and signal "1" is +11 to +30 V.
3. How many inputs can operate as counters?
2 inputs can be used as counters, with a maximum counting frequency of 6 kHz and 32 bit counting width.
4. What diagnostics and interrupts are available?
The module supports diagnostics, diagnostic alarms, hardware interrupts, supply-voltage monitoring, wire-break detection to I < 350 μA, and diagnostic LEDs.
5. What must be verified for the front connection?
The front connector is ordered separately and can have screw terminals or push-in connection.
