Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | DI 16x24VDC SRC BA |
| Digital inputs | 16 |
| Input type | Sourcing |
| Rated input voltage | 24 V DC |
| Signal 0 input voltage | -5 to +30V |
| Signal 1 input voltage | -11 to -30V |
| Input delay | 3.2 ms |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 19.2 V to 28.8 V DC |
| Front connector | Screw terminals or push-in; ordered separately |
| Protection | Reverse polarity protection |
Applications
- Digital signal acquisition: Acquires digital input signals through 16 freely usable sourcing inputs.
Key Features
- Digital input channels: 16 sourcing digital inputs, with all 16 inputs simultaneously controllable and freely usable.
- Input voltage: Rated input voltage: 24 V DC; signal 0: -5 to +30V; signal 1: -11 to -30V.
- Input timing: Input delay: 3.2 ms; standard input transition time is 3 ms to 4 ms for both 0 to 1 and 1 to 0.
- Supply and power: Rated supply voltage: 24 V DC, permissible range 19.2 V to 28.8 V DC; power consumption from the backplane bus: 0.9 W.
- Connection and installation: The front connector uses screw terminals or push-in terminals and must be ordered separately. Dimensions are 15.10 x 15.10 x 4.70 cm.
- Module status indication: RUN LED: green; ERROR LED: red; channel status display: green LED. The module has no diagnostic function.
Frequently Asked Questions
1. How many digital inputs does the 6ES7521-1BH50-0AA0 have?
It has 16 sourcing digital inputs, all simultaneously controllable.
2. What input voltage ranges does this module support?
The rated input voltage is 24 V DC. Signal 0 is -5 to +30V, and signal 1 is -11 to -30V.
3. What front connector is supplied with the module?
The front connector is not included and must be ordered separately; screw-terminal or push-in versions are available.
4. What supply voltage does the module require?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
