SIEMENS 6ES7326-2BF10-0AB0
-
SIEMENS | PLC Controls | Digital Input / Output Modules
- EICHLER-art.no.: K0252221
- EAN: 4025515078289
- UPC: 040892550368
Product description
SIMATIC S7, DIGITAL OUTPUT SM 326, F-DO10X 24 V DC/2A PP, FAIL-SAFE DIGITAL OUTPUT FOR SIMATIC S7F SYSTEMS, WITH DIAGNOSTIC ALARM, LVV, UP TO CATEGORY 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1X 40-POLE
Services for SIEMENS 6ES7326-2BF10-0AB0
Repair
from 592,44 €
to 1.066,39 €
Replacement
Used
1.606,77 €
1.205,08 €
New
1.785,30 €
1.338,97 €
SIEMENS |
6ES7326-2BF10-0AB0 –
additional product information
| Delivery information | |||
|---|---|---|---|
| Export identifier | AL: N ECCN: EAR99H | ||
| Net weight | 0.361 | ||
| Quantity | 1 Stück | ||
| Packaging quantity | 1 | ||
| Additional product information | |||
|---|---|---|---|
| Product status | EOP: 2025-10-01 | ||
| EAN | 4025515078289 | ||
| UPC | 040892550368 | ||
| Static lot number | 85389091 | ||
| List indicator | ST73 | ||
| Product group | 4465 | ||
| Country of origin | DE | ||
| Compliance with the substance restrictions according to RoHS directive | Since: 20091127 | ||
| Product classifications | Version | Classification | |
|---|---|---|---|
| eClass | 4 | 27-24-21-05 | |
| eClass | 5.1 | 27-24-22-04 | |
| eClass | 6.0 | 27-24-22-04 | |
| ETIM | 3 | / | |
| ETIM | 4 | EC001419 | |
| ETIM | 5 | EC001419 | |
What is the 6ES7326-2BF10-0AB0 and where is it used?
The 6ES7326-2BF10-0AB0 is a fail-safe digital output module from the Siemens SIMATIC S7 / ET 200M product family. The module provides 10 fail-safe 24 V DC outputs with up to 2 A per channel and is intended for applications where actuators must be safely switched off or monitored, such as contactors, solenoid valves, safety relays or shutdown circuits in machinery and process plants. Siemens describes the assembly as an F-DO module with diagnostic alarm functionality for S7F systems; within PCS 7, it is classified as a safety-related output module with PROFIsafe V2. For maintenance personnel, it is relevant whenever existing S7-300 or ET 200M installations need to remain in operation. For procurement departments, the exact part number is important because this specific F-module is defined by its functional and safety-related characteristics.
Overview of the key technical data and what it means
The module operates with 24 V DC, requires 1L+ for the electronics and 2L+ and 3L+ as load voltages, and provides 10 outputs. Each channel is rated for 2 A nominal current, with up to 2.4 A permitted, and includes short-circuit protection as well as diagnostic functions. Also important in practice are cable lengths of up to 1,000 m screened or 600 m unscreened, a typical power dissipation of 6 W, galvanic isolation between channels and an arrangement in groups of five channels. In safety applications, the module achieves EN 954 Category 4, PL e and SIL 3. The required 40-pin front connector must also be considered when ordering replacement parts or planning module exchanges. In PCS 7 environments, Siemens specifies a maximum response time of 10 ms for this F-DO module.
Product status, life-cycle status and obsolescence
The lifecycle situation for the 6ES7326-2BF10-0AB0 is clear: Siemens classifies the module as a spare part and assigns the status PM410: Product Cancellation, effective from 01 October 2025. The EICHLER product page likewise lists the status EOP: 2025-10-01. For operators of older S7-300 and ET 200M installations, this means that the module remains technically relevant but has already become an obsolescence issue from a procurement perspective. An officially designated 1:1 successor for this specific order number could not be identified in the reviewed Siemens sources. However, Siemens presents a functionally similar target module within a current ET 200M to ET 200SP HA migration comparison, which should be understood as a migration reference rather than a direct plug-compatible replacement.
Available EICHLER services and when they are relevant in practice
For the 6ES7326-2BF10-0AB0, EICHLER currently offers repair, exchange, used and new options. Repair is particularly useful when an existing machine must be returned to operation quickly while preserving the current parameterisation, wiring and mechanical integration. EICHLER specifies a turnaround time of 2–5 days and describes the service as including technical cleaning, preventive maintenance, comprehensive functional testing and a minimum 24-month warranty. Exchange, used and new units are particularly relevant when downtime costs exceed the time required for repair. For maintenance and procurement teams, this creates practical flexibility: a failed module can be repaired, replaced quickly or exchanged in order to minimise downtime. Especially following discontinuation, this combination of services helps ensure the continued operation of legacy install
| Attribute | Value |
|---|---|
| Supply voltage | |
| Rated value (DC) | 24 V; 1L+ |
| Reverse polarity protection | Yes |
| Load voltage L+ | |
| ● Rated value (DC) | 24 V; 2L+, 3L+ |
| ● Reverse polarity protection | No |
| Input current | |
| from supply voltage 1L+, max. | 100 mA |
| from load voltage 2L+ (without load), max. | 100 mA |
| from load voltage 3L+ (without load), max. | 100 mA |
| from backplane bus 5 V DC, max. | 100 mA |
| Power loss | |
| Power loss, typ. | 6 W |
| Digital outputs | |
| Number of digital outputs | 10 |
| Short-circuit protection | Yes |
| Switching capacity of the outputs | |
| ● on lamp load, max. | 5 W |
| Output voltage | |
| ● for signal "1", min. | L+ (-1.0 V) |
| Output current | |
| ● for signal "1" rated value | 2 A |
| ● for signal "1" permissible range for 0 to 40 °C, min. | 7 mA |
| ● for signal "1" permissible range for 0 to 40 °C, max. | 2.4 A |
| ● for signal "1" permissible range for 40 to 60 °C, min. | 7 mA |
| ● for signal "1" permissible range for 40 to 60 °C, max. | 2.4 A |
| ● for signal "0" residual current, max. | 0.5 mA |
| Switching frequency | |
| ● with resistive load, max. | 25 Hz |
| ● with inductive load, max. | 25 Hz |
| ● on lamp load, max. | 10 Hz |
| Total current of the outputs (per group) | |
| horizontal installation | |
| — up to 40 °C, max. | 10 A |
| — up to 60 °C, max. | 6 A |
| vertical installation | |
| — up to 40 °C, max. | 5 A |
| Cable length | |
| ● shielded, max. | 1 000 m |
| ● unshielded, max. | 600 m |
| Interrupts/diagnostics/status information | |
| Alarms | |
| ● Diagnostic alarm | Yes |
| Diagnoses | |
| ● Diagnostic information readable | Yes |
| Diagnostics indication LED | |
| ● Fail-safe operation | Yes |
| ● Group error SF (red) | Yes |
| Potential separation | |
| Potential separation digital outputs | |
| ● between the channels | Yes |
| ● between the channels, in groups of | 5 |
| ● between the channels and backplane bus | Yes |
| ● between the channels and the power supply of the electronics | Yes |
| Isolation | |
| Isolation tested with | 370V for 1 min |
| Standards, approvals, certificates | |
| Highest safety class achievable in safety mode | |
| ● acc. to DIN VDE 0801 | AK 5 and 6 |
| ● acc. to EN 954 | Cat. 4 |
| ● Performance level according to ISO 13849-1 | e |
| ● SIL acc. to IEC 61508 | SIL 3 |
| Connection method | |
| required front connector | 40-pin |
| Dimensions | |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Weights | |
| Weight, approx. | 330 g |
| Fault description | Possible solution |
|---|---|
| Why does the 6ES7326-2BF10-0AB0 report undervoltage on the load supply? | First check the 2L+ and 3L+ load voltages as well as their reference potential. Siemens specifies a diagnostic for load supply undervoltage on this module; the technical data also shows that the load groups are supplied separately. If individual load paths fail or the reference potential is unstable, the outputs will not receive a reliable supply. Therefore, the power supply, fuses, terminals, front connector and the supply to the individual load groups should be checked systematically. |
| Why does the module report a short circuit to M or to L+ and passivate the channel? | Siemens provides diagnostics for short circuit to M as well as short circuit to L+ and output driver faults. Check the field wiring, the actuator and the load circuit for wiring errors. With capacitive loads, the module may also react if the configured read-back or test times are set too short; Siemens notes that passivation may occur if the configured time is insufficient. A genuine short circuit should not simply be acknowledged but completely eliminated. Siemens also specifies that the fault should be corrected within 100 hours to prevent permanent passivation. |
| Why is a wire break on the 6ES7326-2BF10-0AB0 detected only after a long delay? | Siemens describes a default wire-break test time of 1000 seconds for this F-DO module. As a result, it may take up to approximately half of this period before a diagnostic message appears. This does not necessarily indicate a wiring fault but is often a consequence of the configured parameters. Therefore, check whether the wire-break diagnostics and, where applicable, the lamp test are enabled correctly and whether the configured test time is appropriate for the application. For safety devices and certain actuators, the diagnostics should be configured carefully to achieve the correct balance between reliable fault detection and avoiding unnecessary alarms. |
| Why do I not receive channel-specific diagnostics for outputs 8 and 9? | Siemens specifies a clear requirement on the station side: to use channel-specific diagnostics for all 10 channels of the 6ES7326-2BF10-0AB0 in an ET 200M system, an IM 153-2 from 6ES7153-2BA02-0XB0 onwards with firmware version V5.0 or later is required. Earlier IM 153-2 versions do not support channel-specific fault codes for channels 8 and 9. In practice, therefore, not only the F-module itself but also the interface module and its firmware version should always be checked. |
| Why do outputs 5 to 10 become passivated, or why does the CPU enter STOP when they are activated? | In practice, such behaviour is often caused by a combination of configuration errors, addressing errors, incorrect use of the F-program/F-CALL, or load-related issues. PLC forum discussions have documented cases involving this module where outputs 5–10 became passivated and the CPU entered STOP mode. Siemens documentation also shows that the outputs are arranged in groups and that the total current per group must be observed. Therefore, before assuming a hardware fault, check the F-addressing, duplicate write accesses, the integration of the output within the F-function block, and the current consumption per group. |
Is the 6ES7326-2BF10-0AB0 discontinued?
Yes. Siemens classifies the module as a spare part and assigns it the lifecycle status PM410: Product Cancellation, effective from 01 October 2025. The EICHLER product page also lists the status EOP: 2025-10-01. For operators, this means that the module remains important for existing installations, but future availability should be actively managed through repair strategies, spare-parts stockholding or a planned migration path.
Can I still purchase the 6ES7326-2BF10-0AB0 as a new or used unit?
At the time of research, yes. The referenced EICHLER product page lists both new and used units. In addition, repair services with specified turnaround times are available, while exchange services can be requested. For procurement and maintenance departments, this is particularly valuable because it supports both short-term spare-parts availability and a cost-effective repair alternative. These services are specifically aimed at industrial and business customers.
Which front connector is required for the 6ES7326-2BF10-0AB0?
Siemens specifies a 40-pin front connector for this module. This information is important for inventory management, spare-parts planning and rapid replacement during service operations. If the correct front connector is unavailable or the connector configuration has not been properly documented, replacement can be unnecessarily delayed even when a replacement module is available.
In which environments is the 6ES7326-2BF10-0AB0 typically used?
The module is a fail-safe output module for SIMATIC S7 and ET 200M systems. Siemens includes it in approved module lists for both PROFIBUS DP and PROFINET applications with PROFIsafe V2. As a result, it is commonly found in existing installations within machine building, the process industry and other safety-related automation environments where established ET 200M infrastructures continue to be used.
Is there a direct successor to the 6ES7326-2BF10-0AB0?
No officially designated 1:1 replacement module was identified in the reviewed Siemens documentation for this specific order number. However, Siemens presents a functionally similar target module within its current ET 200M to ET 200SP HA migration comparison. For operators, this should be regarded as a migration path rather than a direct plug-compatible replacement. Before implementing such a migration, the safety functions, wiring, addressing, station architecture and engineering configuration should be thoroughly reviewed.
How quickly does the F-module respond in safety applications?
The Siemens PCS 7 Compendium specifies a maximum response time of 10 ms for the SM 326; F-DO 10 × DC 24 V / 2 A PP. This value is important when evaluating safety shutdown functions and calculating the overall response time of a safety system. In practice, however, this figure should always be considered together with the F-CPU, network topology, field actuators and the configured safety parameters.
