B&R X20EM0611
Intel Atom 400 MHz compatible with integrated I/O processor Ethernet, POWERLINK V2 with poll-response chaining, onboard USB and RS485 512 MB LPDDR4 SDRAM 1 GB onboard flash drive Fanless No battery This compact yet powerful controller is based on Intel Atom processor technology. The fanless, battery-free design of this controller means it is completely maintenance-free. The basic configuration includes USB, Ethernet, POWERLINK V2, RS485 and a flash drive.
Lifecycle & replacement
Lifecycle status not indexed
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Technical specifications
Short description
| Interfaces | 1x RS485, 1x Ethernet (2-port switch), 1x POWERLINK (V2), 2x USB, 1x X2X Link |
| System module | Controller |
General information
| Diagnostics / CPU function | Yes, using LED status indicator |
| Diagnostics / Ethernet | Yes, using LED status indicator |
| Diagnostics / I/O power supply | Yes, using software and LED status indicator |
| Diagnostics / POWERLINK | Yes, using LED status indicator |
| Diagnostics / Temperature | Yes, using software register |
| Support / Controller redundancy | No |
| Support / Storage health data support | Yes |
| Support / ACOPOS support | Yes |
| Support / Visual Components support | Yes |
| Support / Multicore support | No |
| Power consumption / Internal I/O | 0.56 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| 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 |
| Certifications / HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| B&R ID code | 0x289B |
| Cooling | Fanless |
| Status indicators | CPU function, Ethernet, POWERLINK, RS485, I/O power supply |
| Power consumption | 4.6 W |
| Power consumption for X2X Link power supply | 0.6 W |
| Additional power dissipation caused by actuators (resistive) [W] | - |
CPU and X2X Link power supply
| Input voltage | 24 VDC -20% / +25% (nominal voltage: 24 VDC) (max. input power at nominal voltage: 34 W) |
| Input current | Max. 1.4 A at 24 VDC |
| Fuse | Integrated, cannot be replaced |
| Reverse polarity protection | Yes |
X2X Link power supply output
| Nominal output power | 3.5 W |
| Parallel connection | Yes |
| Redundant operation | Yes |
Input I/O power supply
| Input voltage | 24 VDC -15% / +20% (nominal voltage: 24 VDC) (max. input power at nominal voltage: 240 W) |
| Fuse | Required line fuse: Max. 10 A, slow-blow |
Output I/O power supply
| Nominal output voltage | 24 VDC |
| Permissible contact load | 10 A |
Controller
| Processor / L1 cache / Data code | 24 kB |
| Processor / L1 cache / Program code | 32 kB |
| Processor / Type | Atom E3915 |
| Processor / Clock frequency | 400 MHz (compatible). |
| Processor / L2 cache | 1 MB |
| Standard memory / RAM | 512 MB LPDDR4 SDRAM |
| Application memory / Writable data amount / Guaranteed | 40 TB |
| Application memory / Writable data amount / Results for 5 years | 21.9 GB/day |
| Application memory / Type | 1 GB eMMC flash memory |
| Application memory / Data retention | 10 years |
| Application memory / Guaranteed erase/write cycles | 20,000 |
| Application memory / Error-correcting code (ECC) | Yes |
| Real-time clock | Retention for at least 300 hours, typ. 1000 hours at 25°C, 1 s resolution, <30 s/month accuracy at 25°C |
| Floating point unit (FPU) | Yes |
| Integrated I/O processor | Processes I/O data points in the background |
| Modular interface slots | 0 |
| Remanent variables | Max. 64 kB, retention >10 years |
| Shortest task class cycle time | 400 µs |
| Typical instruction cycle time | 0.0044 µs |
Interfaces
| Interface IF2 / Transfer / Physical layer | 10BASE-T/100BASE-TX |
| Interface IF2 / Transfer / Half-duplex | Yes |
| Interface IF2 / Transfer / Full-duplex | Yes |
| Interface IF2 / Transfer / Autonegotiation | Yes |
| Interface IF2 / Transfer / Auto-MDI/MDIX | Yes |
| Interface IF2 / Signal | Ethernet |
| Interface IF2 / Variant | 2x shielded RJ45 (switch) |
| Interface IF2 / Line length | Max. 100 m between 2 stations (segment length) |
| Interface IF2 / Transfer rate | 10/100 Mbit/s |
| Interface IF3 / Transfer / Physical layer | 100BASE-TX |
| Interface IF3 / Transfer / Half-duplex | Yes |
| Interface IF3 / Transfer / Full-duplex | POWERLINK mode: No / Ethernet mode: Yes |
| Interface IF3 / Transfer / Autonegotiation | Yes |
| Interface IF3 / Transfer / Auto-MDI/MDIX | Yes |
| Interface IF3 / Fieldbus | POWERLINK (V2) managing or controlled node |
| Interface IF3 / Type | Type 4 |
| Interface IF3 / Variant | 1x RJ45 shielded |
| Interface IF3 / Line length | Max. 100 m between 2 stations (segment length) |
| Interface IF3 / Transfer rate | 100 Mbit/s |
| Interface IF4 / Type | USB 1.1/2.0 |
| Interface IF4 / Variant | Type A |
| Interface IF4 / Max. output current | 0.5 A |
| Interface IF5 / Type | USB 1.1/2.0 |
| Interface IF5 / Variant | Type A |
| Interface IF5 / Max. output current | 0.5 A |
| Interface IF6 / Fieldbus | X2X Link master |
| Interface IF7 / Signal | RS485 |
| Interface IF7 / Variant | Connection via 6-pin terminal block |
| Interface IF7 / Max. distance | 1000 m |
| Interface IF7 / Transfer rate | Max. 115.2 kbit/s |
| Interface IF7 / Terminating resistor | Integrated in PLC, not switchable |
Electrical properties
| Electrical isolation | Ethernet (IF2), POWERLINK (IF3), X2X (IF6) and RS485 (IF7) isolated from each other, from other interfaces and from PLC I/O to PLC isolated from all interfaces USB (IF4 and IF5) not isolated from PLC |
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 0.6°C per 100 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 70°C |
| Temperature / Transport | -40 to 70°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 | 55 mm |
| Dimensions / Height | 124 mm |
| Dimensions / Depth | 92 mm |
| Note | X20 end cover plate (right) included in delivery 2- and 6-pin terminal block included in delivery |
| Weight | 475 g |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
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.