Features:
- Eight P/M outputs are divided into two isolated safety groups.
- Channel and group diagnostics identify faults before reintegration.
- The module reaches SIL 3, Category 4 and Performance Level e.
Each load is controlled by a positive and a negative switching path rather than a single conventional output transistor.
The safety program exchanges five input bytes and five output bytes with the module through PROFIsafe.
Status LEDs, diagnostic interrupts and SAFE mode provide separate indications for channel operation and fault response.
The Siemens 6ES7326-2BF41-0AB0 SM 326 F-DO Fail-Safe Digital Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7326-2BF41-0AB0 SM 326 F-DO Fail-Safe Digital Output Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Dual-path channel operation
- P Switch: The positive path sources the field-load supply.
- M Switch: The negative path completes and disconnects the return side.
- Channel Pair: Both semiconductor paths are evaluated as one fail-safe output.
- Grouping: Four channels share each electrically isolated potential group.
Passivation and diagnostic response
- Channel Fault: A detected output-path error passivates the affected safety channel.
- Group Fault: Supply or common-condition faults are reported at group level.
- SAFE Mode: The module applies the configured safe output state during a safety response.
- Reintegration: Acknowledgment follows removal of the cause and the safety-program conditions.
Safety communication assignment
- Address: The module F-address must match the value stored in the safety project.
- Input Area: Five bytes carry module status and safety-related feedback.
- Output Area: Five bytes carry the fail-safe output commands.
- CPU Support: The selected F-CPU and engineering version must support this module variant.
Field-circuit boundaries
- Connector: Field conductors terminate on the 40-pole front connector.
- Cable Length: The channel circuit is designed for cable runs up to 200 m.
- Relay Pair: Two relay contacts may be arranged in series under the documented potential rule.
- Cross Circuit: P and M conductors are routed to preserve the required cross-circuit behavior.