Product Overview
Technical Summary
| Product type designation | SM 1221, DI 8×24 V DC |
|---|---|
| Based on | 6ES7221-1BF32-0XB0 |
| Digital inputs | 8 |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 20.4 V to 28.8 V DC |
| Input grouping | In groups of 2 |
| Input characteristic | IEC 61131, type 1 |
| Operating temperature | -25 °C to 60 °C; +70 °C for 10 minutes under OT1, ST1/ST2 according to EN 50155 |
| Protection | IP20 |
Key Features
- Product designation: SM 1221, DI 8×24 V DC; based on 6ES7221-1BF32-0XB0.
- Digital inputs: 8 digital inputs, in groups of 2, with sink/source capability.
- Supply voltage: Rated supply voltage: 24 V DC; permissible range: 20.4 V to 28.8 V DC.
- Input characteristics: Input characteristic curve according to IEC 61131, type 1; input voltage for signal "0": 5 V DC at 1 mA, and for signal "1": 15 V DC at 2.5 mA.
- Environmental design: Conformal coating; ambient temperature during operation: -25 °C to 60 °C, with +70 °C for 10 minutes under OT1, ST1/ST2 according to EN 50155.
- Mechanical and protection details: Required front connector, plastic front enclosure, dimensions 45 mm x 100 mm x 75 mm, and IP20 protection.
Frequently Asked Questions
What product does 6AG2221-1BF32-1XB0 identify?
It identifies an SM 1221, DI 8×24 V DC digital input module with 8 digital inputs.
Which specifications should be checked to distinguish this configuration?
Check the complete order number, the 8 digital inputs, 24 V DC rating, conformal coating, and the -25 °C to 60 °C operating temperature range.
What code and nameplate details should be checked before inquiry?
Check the complete 6AG2221-1BF32-1XB0 order number and the product designation SM 1221, DI 8×24 V DC.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
