The Siemens 6ES7226-6BA32-0XB0 is a fail-safe digital input module for the SIMATIC S7-1200 platform. It provides 16 digital inputs, supports 1oo1 and 1oo2 channel configurations, and is designed for safety-related input applications requiring PROFIsafe communication and high functional-safety performance.
| Manufacturer | Siemens |
| Article Number | 6ES7226-6BA32-0XB0 |
| Product | SIMATIC S7-1200 SM 1226 F-DI 16 x 24 V DC |
| Communication / Safety | PROFIsafe |
| Rated Supply Voltage | 24 V DC |
| Permissible Supply Voltage | 20.4 to 28.8 V DC |
| Digital Inputs | 16 |
| Input Configuration | 16 × 1oo1, 8 × 1oo2, or mixed configuration |
| Signal 0 | −30 V DC to +5 V DC |
| Signal 1 | 15 V DC to 30 V DC |
| Signal 1 Input Current | Typically 5 mA |
| Signal 0 Quiescent Current | Maximum 0.5 mA |
| Input Delay | 0.8 / 1.6 / 3.2 / 6.4 / 12.8 ms, parameterizable |
| SM Bus Current | 155 mA maximum at 5 V DC |
| 24 V DC Current Consumption | 130 mA + 6 mA per input used + Vs1/Vs2 current |
| Typical Power Dissipation | 7 W |
| Dimensions W × H × D | 70 × 100 × 75 mm |
| Weight | Approx. 250 g |
| Protection Rating | IP20 |
| Operating Temperature | 0 °C to 55 °C |
| Storage / Transport Temperature | −40 °C to +70 °C |
| Cable Length | Up to 200 m, depending on shielding and filter configuration |
| Safety Level | 1-channel: PL d / SIL 2; 2-channel: PL e / SIL 3 |
| LED Diagnostics | Input status and input fault indication |
The module can provide 16 single-channel inputs, 8 two-channel inputs, or a mixed configuration, allowing safety input architecture to be adapted to the application.
Green input-status LEDs and red fault indications provide local visibility of channel conditions, supporting faster troubleshooting during commissioning and maintenance.
Two short-circuit-proof sensor supplies are provided, with each supply serving eight inputs. External sensor supply is also supported.
The Siemens 6ES7226-6BA32-0XB0 is typically used as a fail-safe digital input module within SIMATIC S7-1200F control architectures. Siemens application examples show the module used with an S7-1200 F-CPU and SINAMICS G120 applications through PROFIsafe.
Typical safety-related input signals can include switches and 3/4-wire proximity switches used to detect machine or equipment conditions that need to be processed by a safety control system.
Safety input signals are acquired by the F-DI module and processed within the fail-safe control architecture.
A safety input may remain unavailable, show an unexpected state, or trigger a channel fault. Engineers may search for the exact replacement when troubleshooting identifies the F-DI module as the affected component.
A module-level or channel-level diagnostic condition can require inspection of wiring, sensor supply, configuration, and the module itself before replacement is considered.
If a required safety input cannot be restored, the affected machine or safety function may remain unavailable. For production equipment, extended troubleshooting can increase machine downtime, restart delays, and production interruption risk.
Siemens specifies 16 inputs for 1oo1 operation or 8 inputs for 1oo2 operation, with the input pairs individually configurable so that a mixed arrangement can also be implemented.
In two-channel operation, the module can achieve PL e according to ISO 13849-1 and SIL 3 according to IEC 61508. Single-channel operation is specified up to PL d / SIL 2.
The SM 1226 F-DI module is suitable for switches and 3-wire or 4-wire proximity switches such as BEROs, with a rated input voltage of 24 V DC.
The standard input delay is parameterizable to 0.8, 1.6, 3.2, 6.4, or 12.8 ms. The selected filter time should be considered together with the sensor wiring and application requirements.
When the fail-safe digital input module is identified as the defective component, an exact article-number replacement can help restore the affected safety input architecture. This is particularly important when unavailable safety inputs prevent normal machine operation or delay a controlled restart.
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Email : sales3@amikon.cn Mobile : 86-18030235311 Skype : jessica01235483 Wechat : hu18030235311
Email : sales3@amikon.cn Mobile : 86-18030235311 Skype : jessica01235483 Wechat : hu18030235311
Email : sales3@amikon.cn Mobile : 86-18030235311 Skype : jessica01235483 Wechat : hu18030235311
Email : sales3@amikon.cn Mobile : 86-18030235311 Skype : jessica01235483 Wechat : hu18030235311
Email : sales3@amikon.cn Mobile : 86-18030235311 Skype : jessica01235483 Wechat : hu18030235311
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