B&R X20DS838A
8 IO-Link channels (port class A) Each IO-Link channel can be configured as a digital input or output (SIO mode) Additional digital input per IO-Link connection 24 VDC and GND for sensor/actuator power supply NetTime timestamps: IO-Link data The module is an IO-Link master that allows intelligent sensors and actuators to be connected per the IO-Link standard. The module can operate up to 8 IO-Link devices. The significant increase in cyclic data with this product variant enables optimal operation of IO-Link devices. Flatstream communication is now only used in exceptional cases. All IO-Link channels can also be operated in SIO mode and thus used as digital inputs or outputs. The module is also equipped with 8 additional digital inputs that can be used independently of the configuration of the IO-Link channels.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | IO-Link master with 8 IO-Link interfaces |
| Interfaces | 1x X2X Link / X2X+ |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / IO-Link operating state | Yes, using LED status indicator and software |
| Diagnostics / C/Q status | Yes, using LED status indicator and software |
| Cable specification / Cable type | 4-pin standard sensor cable, unshielded |
| Cable specification / Cable length | Max. 20 m |
| Cable specification / Line capacitance | Max. 3 nF |
| Cable specification / Loop resistance | Max. 6 Ω |
| Power consumption / Bus | 0.6 W |
| Power consumption / Internal I/O | 1 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / UL | cULus E115267 Industrial control equipment |
| B&R ID code | 0x30AE |
| Status indicators | IO-Link, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Sensor/Actuator power supply
| Overload protection / Switch-off delay | Configurable using software |
| Overload protection / Switch-off duration | Configurable using software |
| Voltage | I/O power supply minus voltage drop for short-circuit protection |
| Voltage drop for short-circuit protection at 0.5 A | Max. 0.3 V |
| Power consumption | Max. 12 W per IO-Link interface |
| Short-circuit proof | Yes |
IO-Link in master mode
| Transfer rates / COM1 | 4.8 kbaud |
| Transfer rates / COM2 | 38.4 kbaud |
| Transfer rates / COM3 | 230.4 kbaud |
| Limit values for COM3 / Max. connection capacity | 22 nF (cable + IO-Link device) |
| Limit values for COM3 / Max. load | 96 Ω / 250 mA |
| Data format | 1 start bit, 8 data bits, 1 parity bit (even), 1 stop bit |
| Bus level | 24 VDC (active), 0 VDC (resting voltage) |
IO-Link in master mode or in SIO mode "digital output"
| Switching delay / 0 → 1 | <10 µs |
| Switching delay / 1 → 0 | <10 µs |
| Variant | Bipolar, positive and negative switching |
| Peak short-circuit current | <1.3 A |
| Residual voltage | <0.7 VDC at nominal current 0.25 A |
| Switching voltage | I/O power supply minus voltage drop for short-circuit protection and semiconductor switch |
| Voltage drop on semiconductor switch | Max. 0.5 VDC at 0.25 A |
| Switching frequency | Typ. 25 kHz 300 kHz in IO-Link master mode |
| Switch-on in the event of overload shutdown or short-circuit shutdown | Configurable with software |
| Insulation voltage between IO-Link and bus | 1210 VDC |
IO-Link in SIO mode "Digital output"
| Nominal voltage | 24 VDC |
| Nominal output current | 0.25 A |
| Total nominal current | Max. 2 A |
| Output circuit | Sink or source |
| Switching frequency (resistive load) | Max. 500 Hz |
| Output protection | Thermal shutdown in the event of overcurrent or short circuit, integrated protection for switching inductive loads |
IO-Link in SIO mode "digital input"
| Input filter / Hardware | 300 ns |
| Input filter / Software | - |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| 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 | Typ. 4 mA |
| Input resistance | Typ. 6 kΩ |
| Insulation voltage between IO-Link and bus | 1210 VDC |
Electrical properties
| Electrical isolation | Bus isolated from IO-Link IO-Link not isolated from IO-Link |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Installation elevation above sea level / Maximum | 4000 m |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / 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
| Dimensions / Width (pitch) | 27.5 ⁺⁰.² mm |
| Dimensions / Height | 124 mm |
| Dimensions / Depth | 92 mm |
| Note | Order terminal blocks separately (see section "Order data"). |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.