B&R X20AO2437
2 analog current outputs Electrically isolated analog channels 16-bit digital converter resolution The module is equipped with 2 current outputs with 16-bit digital converter resolution. The 2 channels are electrically isolated from each other. The user can select between the 3 output ranges 4 to 20 mA, 0 to 20 mA and 0 to 24 mA.
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 | 2 analog outputs 4 to 20 mA, 0 to 20 mA or 0 to 24 mA |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator and software |
| Power consumption / Bus | 0.05 W |
| Power consumption / Internal I/O | 1.6 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 |
| Certifications / DNV | Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck) |
| Certifications / CCS | Yes |
| Certifications / LR | ENV1 |
| Certifications / KR | Yes |
| Certifications / ABS | Yes |
| Certifications / BV | EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck |
| Certifications / KC | Yes |
| B&R ID code | 0xB785 |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Analog outputs
| Max. error / Gain / 4 to 20 mA | ±0.025% |
| Max. error / Gain / 0 to 20 mA | ±0.022% |
| Max. error / Gain / 0 to 24 mA | ±0.02% |
| Max. error / Offset / 4 to 20 mA | ±0.025% |
| Max. error / Offset / 0 to 20 mA | ±0.022% |
| Max. error / Offset / 0 to 24 mA | ±0.02% |
| Output format / 4 to 20 mA | INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 488.281 nA |
| Output format / 0 to 20 mA | INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 610.352 nA UINT 0x0000 to 0xFFFF / 1 LSB = 0x0001 = 305.176 nA |
| Output format / 0 to 24 mA | INT 0x0000 to 0x5DC0 / 1 LSB = 0x0001 = 1000 nA |
| Max. gain drift / 4 to 20 mA | ±0.0055%/°C |
| Max. gain drift / 0 to 20 mA | ±0.005%/°C |
| Max. gain drift / 0 to 24 mA | ±0.005%/°C |
| Max. offset drift / 4 to 20 mA | ±0.0035%/°C |
| Max. offset drift / 0 to 20 mA | ±0.002%/°C |
| Max. offset drift / 0 to 24 mA | ±0.002%/°C |
| Error caused by load change / 4 to 20 mA | 0.14% |
| Error caused by load change / 0 to 20 mA | 0.1% |
| Error caused by load change / 0 to 24 mA | 0.1% |
| Test voltage / Channel - Channel | 1000 VAC |
| Test voltage / Channel - Bus | 1000 VAC |
| Test voltage / Channel - Ground | 1000 VAC |
| Output | 4 to 20 mA, 0 to 20 mA or 0 to 24 mA configurable using software |
| Digital converter resolution | 16-bit |
| Settling time on output change over entire range | 2 ms to 20 s, configurable using software |
| Data output rate | 1 ms without ramp |
| Output protection | Short-circuit proof, overvoltage protection (up to 30 VDC) |
| Open-circuit detection | Yes, using hardware and software |
| Data format | INT |
| Load per channel | Max. 600 Ω |
| Short-circuit proof | Yes, continuous |
| Output filter | Active second-order low-pass filter / Cutoff frequency 4 kHz Configurable slew rate |
| Nonlinearity | <0.003% |
Electrical properties
| Electrical isolation | Channel isolated from channel and bus |
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 |
| 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 | 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 1x terminal block X20TB12 separately. Order 1x bus module X20BM11 separately. |
| Pitch | 12.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Certificates
- 2226379 CSA Certificate of Compliance X20 X67
- 64331_A1 BV Certificate of Compliance X20
- 64331_A1 BV Certificate of Compliance X20(de)
- ABS Certificate of Product Design Assessment - X20 IO Series
- CCS Type Approval Certificate - X20
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20 IO - Connected Product Information Notice
- EU Declaration ATEX X20
- EU Declaration of conformity PLC X20
- FTZU 09 ATEX 0083X
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
Get a quote for a replacement
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.