Product Description
Key Features
- Fail-safe digital output identity: SIMATIC S7 SM 326 with 8 F-DO 24 V DC/2 A fail-safe digital outputs using sinking-sourcing outputs.
- Safety classification: Up to category 4 according to EN 954-1, SIL 3 according to IEC 61508, and performance level e according to ISO 13849-1.
- Supply and protection: Rated supply voltage: 24 V; 1L+. Reverse polarity protection is available for the supply voltage, and the digital outputs have short-circuit protection.
- Output capacity: Rated output current for signal "1": 2 A. The permissible maximum is 2 A for horizontal installation and 1 A for vertical installation at 0 to 40 °C; at 40 to 60 °C, the maximum is 1 A for horizontal installation.
- Diagnostics and channel separation: Diagnostic alarm is parameterizable, diagnostic information is readable, and fail-safe operation and group error SF (red) indication are available. The outputs have potential separation between channels, in groups of 4.
- Connection and dimensions: Required front connector: 40-pin. Dimensions: 80 mm width, 125 mm height, and 120 mm depth; approximate weight: 465 g.
- Lifecycle data: Product cancellation.
Technical Summary
| Function | SM 326 fail-safe digital output |
|---|---|
| Digital outputs | 8 |
| Rated supply voltage | 24 V; 1L+ |
| Rated output current for signal "1" | 2 A |
| Output switching frequency | 30 Hz with resistive load; 2 Hz with inductive load; 10 Hz on lamp load |
| Safety classification | Category 4 according to EN 954-1; performance level e according to ISO 13849-1; SIL 3 according to IEC 61508 |
| Required front connector | 40-pin |
| Power loss, typ. | 12 W |
| Lifecycle | Product cancellation |
Frequently Asked Questions
What exact nameplate order number should be confirmed for this Siemens module?
Confirm 6ES7326-2BF41-0AB0 and the SIMATIC S7 SM 326 identification.
How many digital outputs and what output rating does the module have?
It has 8 fail-safe digital outputs. The rated output current for signal "1" is 2 A; the permissible maximum depends on installation orientation and temperature.
Which front connector is required?
A 40-pin front connector is required.
What safety classifications are supplied for this configuration?
The supplied classifications are category 4 according to EN 954-1, performance level e according to ISO 13849-1, and SIL 3 according to IEC 61508.
What lifecycle information should be considered?
The lifecycle data states Product cancellation.
