B&R X20SLX842
openSAFETY manager for up to 10 SafeNODEs Flexibly programmable using Automation Studio / SafeDESIGNER Innovative management of safe machine options (SafeOPTION) Parameter and configuration management 8 safe digital inputs, sink circuit 4 pulse outputs Software input filter configurable for each channel 4 safe digital outputs, output type A with 3 A, source circuit 2 safe digital outputs, output type B with 50 mA, source circuit Integrated output protection The module is equipped with SafeLOGIC functionality that allows it to safely execute applications designed in SafeDESIGNER. The module can be used in safety-related applications up to PL e or SIL 3. In addition, the module coordinates the safety-related communication of all modules involved in the application. In this context, the module also monitors the configuration of these modules and carries out autonomous parameter downloads to the modules whenever necessary. This guarantees a consistent and correct module configuration in the network from a safety standpoint in all scenarios involving module replacement and service. These services are performed in conjunction with Automation Runtime on the standard CPU. In addition, SafeLOGIC-X products have the same I/O properties as the associated SafeIO products (X20SC0xxx).
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
Short description
| I/O module | 8 safe type A digital inputs, 4 pulse outputs, 24 VDC, 4 safe type A digital outputs, 24 VDC, 3 A, OSSD <500 µs, 2 safe type B2 digital outputs, 24 VDC, 50 mA, OSSD <500 µs, SafeLOGIC-X technology |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator and software |
| Diagnostics / Inputs | Yes, using LED status indicator and software |
| Blackout mode / Scope | Module |
| Blackout mode / Function | Programmable |
| Blackout mode / Standalone mode | Yes |
| Power consumption / Bus | 0.4 W |
| Power consumption / Internal I/O | 2.5 W |
| Additional power dissipation caused by actuators (resistive) [W] / Safe digital HS-LS outputs | 0.84 |
| Additional power dissipation caused by actuators (resistive) [W] / Safe digital HS-HS outputs | 0.175 |
| Additional power dissipation caused by actuators (resistive) [W] / Pulse outputs | 0.8 |
| Electrical isolation / Channel - Bus | Yes |
| Electrical isolation / Channel - Channel | No |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / Functional safety | cULus FSPC E361559 Energy and industrial systems Certified for functional safety ANSI UL 1998:2013 |
| Certifications / Functional safety #2 | IEC 61508, up to SIL 3 IEC 62061, up to SIL 3 ISO 13849-1, up to Cat. 4 / PL e IEC 61511, up to SIL 3 |
| Certifications / Functional safety #3 | EN 50156-1 |
| Certifications / ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| Certifications / UL | cULus E115267 Industrial control equipment cULus E537419 Engine generator controller |
| B&R ID code | 0xE7EB |
| Status indicators | I/O function per channel, operating state, module status |
Safety characteristics
| Note | See section "Safety characteristics". |
Limit values for SafeDESIGNER application
| Max. resources available for SafeDESIGNER info window entries / FB instances | 256 |
| Max. resources available for SafeDESIGNER info window entries / Marker memory | 5120 bytes (0x1400) |
| Max. resources available for SafeDESIGNER info window entries / Stack memory | 4096 bytes |
| Max. resources available for SafeDESIGNER info window entries / Memory for safe input data | 128 bytes, 68 bytes of which are usable for modules |
| Max. resources available for SafeDESIGNER info window entries / Memory for safe output data | 64 bytes |
| Max. resources available for SafeDESIGNER info window entries / Memory for standard input data | 64 bytes |
| Max. resources available for SafeDESIGNER info window entries / Memory for standard output data | 64 bytes |
| Max. resources available for SafeDESIGNER info window entries / Marker count | 256 |
| Additional SafeDESIGNER limit values / Max. number of function block types | 64 |
| Additional SafeDESIGNER limit values / Max. number of force variables | 8 |
| Additional SafeDESIGNER limit values / Max. number of variable with variable status | 128 |
I/O power supply
| Nominal voltage | 24 VDC |
| Voltage range | 24 VDC -15% / +20% |
| Integrated protective function | Reverse polarity protection |
Safe digital inputs
| Input filter / Hardware | ≤150 µs |
| Input filter / Software | Configurable between 0 and 500 ms |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Quantity | 8 |
| Variant | Type A |
| Nominal voltage | 24 VDC |
| Input characteristics per EN 61131-2 | Type 1 |
| Input circuit | Sink |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Min. 2 mA to max. 3.28 mA |
| Input resistance | Min. 7.33 kΩ |
| Error detection time | 100 ms |
| Insulation voltage between channel and bus | 500 Veff |
| Line length between signal source (pulse output or external signal) and input | Max. 60 m with unshielded line Max. 400 m with shielded line |
Safe digital HS-LS outputs
| Quantity | 4 |
| Variant | FET, 1x positive switching, 1x negative switching, type A, output level readable |
| Nominal voltage | 24 VDC |
| Nominal output current | 3 A |
| Total nominal current | 10 A |
| Output protection | See section "Inrush current behavior for output channels". |
| Braking voltage when switching off inductive loads | Max. 90 VDC |
| Error detection | 1 s |
| Insulation voltage between channel and bus | 500 Veff |
| Peak short-circuit current | See section "Inrush current behavior for output channels". |
| Leakage current when the output is switched off | <1 mA |
| RDS(on) | 30 mΩ |
| Switching voltage | I/O power supply minus voltage drop due to RDS(on) |
| Max. switching frequency | See section "Inrush current behavior for output channels". |
| Test pulse length | Max. 500 µs |
| Max. capacitive load | 100 nF |
Safe digital HS-HS outputs
| Quantity | 2 |
| Variant | FET, 2x positive switching, type B2, output level readable |
| Nominal voltage | 24 VDC |
| Nominal output current | 50 mA |
| Total nominal current | 100 mA |
| Output protection | See section "Inrush current behavior for output channels". |
| Braking voltage when switching off inductive loads | Max. 45 VDC |
| Error detection time | 1 s |
| Insulation voltage between channel and bus | 500 Veff |
| Peak short-circuit current | See section "Inrush current behavior for output channels". |
| Leakage current when the output is switched off | <1 mA |
| RDS(on) | 35 Ω |
| Switching voltage | I/O power supply minus voltage drop due to RDS(on) |
| Max. switching frequency | See section "Inrush current behavior for output channels". |
| Test pulse length | Max. 500 µs |
| Max. capacitive load | 100 nF |
Current on loss of ground
| IOUT | <100 µA |
| IGND | <50 mA |
Pulse outputs
| Quantity | 4 |
| Variant | Push-Pull |
| Nominal output current | 50 mA |
| Output protection | Shutdown of individual channels in the event of overload or short circuit |
| Peak short-circuit current | 0.5 A for 120 µs |
| Short-circuit current | 15 mAeff |
| Leakage current when the output is switched off | 0.1 mA |
| RDS(on) | 80 Ω |
| Switching voltage | I/O power supply minus voltage drop due to RDS(on) |
| Total nominal current | 200 mA |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level | 0 to 2000 m, no limitation |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | 0 to 60°C |
| Temperature / Operation / Vertical mounting orientation | 0 to 50°C |
| Temperature / Derating | See section "Derating". |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | 5 to 95%, non-condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 2x safety-keyed terminal block separately. Order 1x safety-keyed bus module separately. |
| Pitch | 25⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
Certificates
- E115267 UL Certificate of Compliance X20
- E537419 UL Certificate of Compliance X20
- EU Data Act - X20 SafePLC - Connected Product Information Notice
- EU Declaration FS PLC X20
- EU Declaration of Conformity CE_Declaration_FS_X20
- M6A 041745 0010 TÜV Süd FS Certificate SafeDESIGNER, SafeLOGIC, SafeIO
- M6A 041745 0013 TÜV Süd FS Certificate mapp Safety
- TAA00000BJ DNV Type Approval Certificate X20
- UK Declaration FS PLC X20
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.