Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Digital input channels | 32 |
| Input voltage type | DC |
| Rated input voltage | 24 V |
| Signal 0 input voltage | -30 V DC to +5 V DC |
| Signal 1 input voltage | 13 V DC to 30 V DC |
| Input characteristic | Type 1 according to IEC 61131 |
| Simultaneously controllable inputs | 32 |
| Input status indication | Green LED; Yes |
| Diagnostics function | No |
| Typical power loss | 6 W |
| Backplane bus input current | 20 mA max. at 5 V DC |
| Operating ambient temperature | -25 °C to 60 °C |
Key Features
- 32 digital inputs: The module has 32 digital inputs with a Type 1 input characteristic according to IEC 61131.
- 24 V DC input signals: Rated input voltage is 24 V DC; signal 0 is -30 V DC to +5 V DC and signal 1 is 13 V DC to 30 V DC.
- Input timing: For standard inputs, transition times are 1.2 ms min. and 4.8 ms max. for both "0" to "1" and "1" to "0".
- Connection and isolation: Shielded cable length is max. 1 000 m and unshielded cable length is max. 600 m. The digital inputs are not electrically separated between channels and are separated from the backplane bus.
- Input status indication: Green LEDs indicate the status of the digital inputs. The module has no diagnostics function.
- Conformal coating and dimensions: The module has conformal coating for high reliability, with a 25 mm width, 290 mm height, and 210 mm depth.
Frequently Asked Questions
1. What type of I/O does the Siemens 6AG1421-1BL01-2AA0 provide?
It provides 32 digital DC inputs with a Type 1 input characteristic according to IEC 61131.
2. What input voltage ranges does this module support?
The rated input voltage is 24 V DC. Signal 0 is -30 V DC to +5 V DC, and signal 1 is 13 V DC to 30 V DC.
3. Does the module provide diagnostics?
It has no diagnostics function, but green LEDs indicate the status of the digital inputs.
4. What cable lengths are supported?
The maximum cable length is 1 000 m for shielded cable and 600 m for unshielded cable.
5. What should be verified before requesting a quote?
Verify the exact order number, 32-channel DC input configuration, signal ranges, cable type, dimensions, and the conformal-coating requirement.
