Product Description
Key Features
- Exact product identity: SIPLUS S7-1200 SM 1221 digital input module, based on 6ES7221-1BH32-0XB0.
- Digital inputs: 16 digital inputs, arranged in groups of 4, with a type 1 input characteristic curve in accordance with IEC 61131.
- Supply and input voltage: Rated supply voltage: 24 V DC; permissible supply range: 20.4 V to 28.8 V DC. Rated input voltage: 24 V DC.
- Environmental range: Ambient temperature during operation: -40 °C to 70 °C; start up at -25 °C. At Tmax > +60 °C, 8 inputs may be simultaneously activated for horizontal mounting.
- Conformal coating and protection: Conformal coating is provided; IP degree of protection: IP20.
- Installation and connection: Required front connector. Dimensions: 45 mm × 100 mm × 75 mm; weight, approx. 210 g.
Technical Summary
| Product type | SM 1221, DI 16×24 V DC |
|---|---|
| Based on | 6ES7221-1BH32-0XB0 |
| Digital inputs | 16; in groups of 4 |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 20.4 V to 28.8 V DC |
| Operating temperature | -40 °C to 70 °C; start up at -25 °C |
| Input characteristic | In accordance with IEC 61131, type 1 |
| Protection | IP20 |
| Required connector | Front connector |
| Lifecycle | Active Product |
Frequently Asked Questions
What exact model should be confirmed for this Siemens module?
Confirm order number 6AG1221-1BH32-2XB0 and product type SM 1221, DI 16×24 V DC.
What input configuration does 6AG1221-1BH32-2XB0 have?
It has 16 digital inputs arranged in groups of 4, with 24 V DC rated input voltage.
What supply voltage range does the module accept?
The rated supply voltage is 24 V DC, with a permissible range from 20.4 V to 28.8 V DC.
What temperature conditions should be checked?
Operation is -40 °C to 70 °C, with start up at -25 °C. At Tmax > +60 °C, 8 inputs may be simultaneously activated for horizontal mounting.
What should be confirmed for an installed-part request?
Confirm the complete order number, product type, required front connector, quantity, destination and condition preference.
