Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | DI 16x24VDC SRC BA |
| Digital input channels | 16; above +60 °C, maximum 8 simultaneously controllable inputs |
| Rated input voltage | 24 V DC |
| Input delay | 3.2 ms |
| Permissible supply voltage | 19.2 V to 28.8 V DC |
| Input characteristic | IEC 61131, type 3 |
| Backplane bus power consumption | 0.9 W |
| Typical power loss | 2.8 W |
| Isolation | Between channels and backplane bus; tested with 707 V DC (type test) |
| Two-wire sensor quiescent current | Maximum 1.5 mA |
| Firmware update possible | Yes |
Applications
- Digital signal acquisition: Acquisition of digital signals through 16 sourcing inputs.
Key Features
- Digital input channels: 16 digital inputs in groups of 16; above +60 °C, a maximum of 8 inputs can be controlled simultaneously.
- Input type and delay: Sourcing inputs with an input characteristic curve according to IEC 61131, type 3; input delay: 3.2 ms.
- Input voltage: Rated input voltage: 24 V DC; signal "0": -5 to +30V; signal "1": -11 to -30V.
- Supply and power: Permissible supply voltage: 19.2 V to 28.8 V DC; power consumption from the backplane bus: 0.9 W; typical power loss: 2.8 W.
- Connection and isolation: Two-wire sensors are connectable with a maximum permissible quiescent current of 1.5 mA. Channels are not isolated from each other and are isolated from the backplane bus; isolation tested with 707 V DC (type test).
- Status indication and coating: RUN LED: green; ERROR LED: red; channel status display: green LED. The module has conformal coating and a -40…+70 °C temperature range.
Frequently Asked Questions
1. What type of I/O does Siemens 6AG1521-1BH50-7AA0 provide?
It provides 16 sourcing digital inputs in groups of 16.
2. What input voltage does the module use?
The rated input voltage is 24 V DC, with a permissible supply voltage range of 19.2 V to 28.8 V DC.
3. What is the input delay?
The input delay is 3.2 ms.
4. Does the module provide channel diagnostics?
No. Channel diagnostics, module diagnostics, wire-break monitoring, and short-circuit monitoring are not provided; a green channel status LED is provided.
5. What should be verified before requesting a quote?
Verify the 16-channel configuration, the 24 V DC signal requirements, the connection of two-wire sensors, and the installation conditions above +60 °C, where a maximum of 8 inputs can be controlled simultaneously.
