Key Features
- Fail-safe NAMUR input: Fail-safe NAMUR input for SIMATIC S7 F-systems.
- 8 DI: Digital input module with 8 DI.
- 24 V DC: Rated value (DC): 24 V.
- Safety classification: Up to category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849).
- 1x 40-pole connection: Required front connector: 1x 40-pole.
Applications
- Fail-safe NAMUR input acquisition: Fail-safe NAMUR input handling in SIMATIC S7 F-systems.
Technical Summary
| Product type | digital input SM 326 |
|---|---|
| Number of digital inputs | 8 |
| Rated value (DC) | 24 V |
| Input voltage type | DC |
| Reverse polarity protection | Yes |
| Input current from load voltage L+ (without load), max. | 160 mA |
| Input current from backplane bus 5 V DC, max. | 90 mA |
| Input current for signal "0", max. (permissible quiescent current) | 0.35 to 1.2 mA |
| Input current for signal "1", typ. | 2.1 to 7 mA |
| Connection method | required front connector 1x 40-pole |
| Highest safety class achievable in safety mode, acc. to EN 954 | Cat. 4 |
| Performance level according to ISO 13849-1 | PLe |
| SIL acc. to IEC 61508 | SIL 2 (single-channel), SIL 3 (two-channel) |
Frequently Asked Questions
What is Siemens 6ES7326-1RF01-0AB0 used for?
It is a SIMATIC S7 digital input SM 326 for fail-safe NAMUR input in SIMATIC S7 F-systems.
How many inputs does 6ES7326-1RF01-0AB0 provide?
It provides 8 DI.
What safety ratings are supported by 6ES7326-1RF01-0AB0?
It supports up to category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849).
What connection and electrical details should be checked for 6ES7326-1RF01-0AB0?
The module uses 24 V DC, has reverse polarity protection, and requires a 1x 40-pole front connector.
