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Brand: Turck
Turck TBPN-L5-4FDI-4FDX PROFIsafe I/O Block 4 Safe Inputs 4 Safe
Description
TBPN-L5-4FDI-4FDX in brief
TBPN-L5-4FDI-4FDX is a compact PROFIsafe and PROFINET block I/O module with four secure digital SIL 3 inputs and four secure configurable digital SIL 3 channels that can operate as inputs or outputs.
Turck lists these features for it in the datasheet: 100 Mbps supported; Shock and vibration tested; Glass fiber reinforced housing; 2 × M12, 4-pin, D-coded, Ethernet fieldbus; Integrated Ethernet switch; ATEX zone 2/22; 5-pin 7/8″ male connector for power supply; PROFINET device; Fully potted module electronics.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | TBPN-L5-4FDI-4FDX |
| Ident number | 100001826 |
| Supply voltage | 24 VDC |
| Admissible range | 20.4…28.8 VDC |
| Voltage supply connection | 7/8″, 5-pin |
| Power dissipation, typical | ≤5W |
| Fieldbus transmission rate | 100 Mbps |
| Fieldbus connection technology | 2 x M12, 4-pin, D-coded |
| Web server | integrated |
| Service interface | Ethernet via P1 or P2 |
| Addressing | DCP |
| Conformance class | B (RT) |
| MinCycleTime | 1 ms |
| Topology detection | supported |
| Automatic addressing | supported |
| Media Redundancy Protocol (MRP) | supported |
| PL acc. to EN ISO 13849-1 | Level e |
| Category acc. to DIN EN 13849-1:2008 | 4 |
| SIL acc. to IEC 61508 | 3 |
| Useful Lifetime | 20 years (EN ISO 13849-1) |
| Low-level signal voltage | EN 61131-2 Type 1 ( < 5 V; < 0.5 mA) |
| High-level signal voltage | EN 61131-2 Type 1 ( > 15 V; > 2 mA) |
| Max. tolerance test pulse width | 1 ms |
| Interval between 2 test pulses, minimum | 20 ms at 1 ms test pulse width |
| Max. loop resistance | < 150 Ω |
| Max. cable length | max. 1 μF at 150 Ω |
| Test pulse, typical | 0.6 ms |
| Test pulse, maximum | 0.8 ms |
| Additional information | No connection to external potential allowed |
| Output current in off state | < 5 V |
| Interval between 2 test pulses, typical | 500 ms |
| Max. output current | 2 A (resistive) |
| Connectivity inputs | M12, 5-pin |
| Input delay | 2.5 ms |
| Connectivity outputs | M12, 5-pin |
| Directive | 2006/42/EC Machine Directive |
Application notes
This is the larger, safety-only sibling of the combined safe, standard and IO-Link module: eight safe channels in the L5 housing mean a whole machine zone of emergency stops, guard-door switches and safety mats can be collected on one PROFINET node. The datasheet states SIL 3, PL e, an IP65, IP67 and IP69K rated housing and a supply range of 20.4 to 28.8 VDC. Safety-relevant wiring and parameterisation must follow the manufacturer manual.
Installation hint: set the PROFIsafe address and safety parameters with the engineering tool, use the connectors and supply range from the table, and wire safety sensors as described in the manual. Cap unused ports to keep the IP rating.
Ordering code and what to confirm
TBPN is the Turck PROFINET and PROFIsafe block family; the datasheet title lists the safe digital channels (FDI inputs, FDX configurable channels), standard channels and IO-Link ports in this module. Ident number 100001826 identifies this exact module.
Points to confirm with us before ordering: the safety function and required SIL or performance level for each channel, the connector types, the supply range and the hazardous-area conditions in the manual, and the PROFIsafe parameters of your safety controller. Everything in the table comes from the datasheet as published, so the maker document is the final reference.
Related Turck products: Turck TBPN-L1-FDIO1-2IOL PROFIsafe I/O Block 2 Safe Inputs 2, Turck TBEN-S1-4DIP-4DOP Block I/O Module 4 PNP Inputs 4 PNP, Turck TBEN-L4-8DIP-8DOP Block I/O Module 8 PNP Inputs 8 PNP, Turck TBEN-S2-8DIP Block I/O Module 8 PNP Inputs M8 PROFINET, Turck TBEN-L5-16DOP Block I/O Module 16 PNP Outputs 2 A M12 and Turck TBEN-S1-8DIP Block I/O Module 8 PNP Inputs M8 Group.
Documents and quotation
Datasheet: PDF. It is the manufacturer’s own document for TBPN-L5-4FDI-4FDX, kept unaltered. To request pricing and delivery, give us the full code TBPN-L5-4FDI-4FDX, the quantity and your project reference. Seven Star LLC supplies as an independent supplier in Muscat. Related items sit in PLC & I/O Cards.
Datasheets & Documents
- Datasheet Turck TBPN-L5-4FDI-4FDX Datasheet Download
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About brand
Turck is the German automation company for sensors, connectivity, fieldbus I/O and interface technology. It grew from Hans Turck's engineering office in Mülheim an der Ruhr: in 1965 a chemical plant ordered an isolation amplifier for intrinsically safe circuits, and the first 20 units were built by his brother Werner Turck in Halver. The family-owned Turck group is still headquartered in Mülheim an der Ruhr, with production in Halver and other sites.
Seven Star LLC is an independent supplier in Muscat. We list Turck sensors and I/O devices for machine builders and maintenance teams in Oman and the GCC.
Turck company profile
| Founded | 1965, Germany, by the brothers Hans and Werner Turck |
|---|---|
| First product | An isolation amplifier with intrinsically safe circuits for explosion-protected areas, first supplied to Chemische Werke Hüls |
| Headquarters | Mülheim an der Ruhr, Germany; production in Halver |
| Ownership | Family-owned group; Turck Holding was formed in 1994 |
| Product families | Inductive, capacitive and ultrasonic sensors, TBEN block I/O and fieldbus modules, IO-Link masters and hubs, connectors and cordsets, isolating barriers and interface modules, RFID systems |
Milestones
- 1965: An order from a German chemical plant for an amplifier module starts the business; Werner Turck builds the first 20 units.
- 1970: Hans Turck KG and Werner Turck KG are registered as separate companies.
- 1975: Hans Turck KG opens its building in Mülheim an der Ruhr.
- 1994: Turck Holding combines the two Turck companies under one roof.
Turck product series
Most of the Turck products here are inductive proximity sensors: threaded M12, M18 and M30 barrels in flush (BI) and non-flush (NI) versions, uprated-range (U) sensors, rectangular CP40 and CP80 housings and BIM magnetic-field sensors for detecting pistons in pneumatic cylinders. The type code describes the sensor; in BI5-M18-AP6X-H1141, BI means flush mounting, 5 is the switching distance in mm, AP6X a three-wire PNP output and H1141 the M12 connector.
Turck also makes RU ultrasonic sensors, PS pressure, TS temperature and LS level sensors, FCI inline flow sensors, the CMVT vibration and temperature sensor for condition monitoring over IO-Link, and fieldbus and Ethernet I/O modules and communication components.
Where Turck sensors are used
Position detection on conveyors, packaging machines, presses and robotic cells; level, pressure and temperature monitoring on hydraulic units and process skids; and vibration monitoring on motors, pumps and fans.
Turck products we list
Ordering Turck sensors: what we need
Send the full type code and the six- or seven-digit ID number printed on the sensor or its label. If the label is missing, give the housing size, flush or non-flush mounting, switching distance, output type (PNP or NPN, NO or NC), supply voltage and connection (cable or connector).
Facts checked against Turck's published company history, October 2026.
Browse Turck products by category: Inductive Proximity Sensors, Flow Indicators & Switches, Level Instrumentation, Pressure Instrumentation, Temperature Instrumentation, Vibration Monitoring.
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Frequently Asked Questions
The datasheet lists SIL 3 acc. to IEC 61508 and performance level Level e acc. to EN ISO 13849-1.
PROFINET with PROFIsafe for the safety data, with an integrated Ethernet switch and two M12 D-coded Ethernet ports.
24 VDC, admissible range 20.4…28.8 VDC.
IP65 in the datasheet, with IP67 and IP69K named in the feature list; ambient temperature -40…+70 °C.
Confirm the safety function and required SIL or performance level for each channel, the connector types, the supply range and the hazardous-area conditions in the manual, and the PROFIsafe parameters of your safety controller.

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