B&R X20cSD1207
1 safe digital counter input with up to 7 kHz counter frequency For encoder inputs A-A, A-B, A-A/-B-B/ Sink circuit Input filter configurable This module is equipped with 1 safe digital input for determining the velocity. Velocity information can be acquired from AB signals up to a maximum frequency of 7 kHz. The safe counter module is suitable for safely acquiring velocities for safety-related applications up to PL e or SIL 3. This module is designed for X20 12-pin terminal blocks.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 1 safe type A digital counter channel, 7 kHz, 24 VDC |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Inputs | Yes, using LED status indicator and software |
| Blackout mode / Scope | Module |
| Blackout mode / Function | Module functionality |
| Blackout mode / Standalone mode | No |
| Power consumption / Bus | 0.25 W |
| Power consumption / Internal I/O | 0.75 W |
| 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 61508:2010, SIL 3 EN 62061:2005/A2:2015, SIL 3 EN ISO 13849-1:2015, Cat. 4 / PL e IEC 61511:2004, SIL 3 |
| Certifications / Functional safety #3 | EN 50156-1:2004 |
| 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: A (0 to 45°C) Humidity: B (up to 100%) Vibration: A (0.7 g) EMC: B (bridge and open deck) |
| Certifications / LR | ENV1 |
| Certifications / KR | Yes |
| Certifications / ABS | Yes |
| Certifications / BV | EC21B Temperature: 5 - 45°C Vibration: 0.7 g EMC: Bridge and open deck |
| B&R ID code | 0xE1CB |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | 0.064 |
Safety characteristics
| Note | See section "Safety characteristics". |
Encoder power supply
| Protective measures / Short-circuit proof | Thermal limit determined by PTC |
| Output voltage | I/O power supply minus voltage drop due to RDS(on) |
| Nominal output current | 80 mA |
| RDS(on) | 10 Ω |
I/O power supply
| Nominal voltage | 24 VDC |
| Voltage range | 24 VDC -15% / +20% |
| Integrated protective function | Reverse polarity protection |
Safe digital counter inputs
| Input filter / Hardware | <10 µs |
| Input filter / Software | Configurable between 0 and 100 s |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Quantity | 1 |
| Variant | Type A |
| Nominal voltage | 24 VDC |
| Input characteristics per EN 61131-2 | Type 1 |
| Input frequency | Max. 7 kHz |
| Input circuit | Sink |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Min. 2 mA to max. 2.48 mA |
| Input resistance | 9.68 kΩ |
| Insulation voltage between channel and bus | 500 Veff |
| Line length | Max. 30 m shielded |
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 | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | See section "Derating". |
| Temperature / Starting temperature | Yes, -40°C |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | Up to 100%, condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 1x 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
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
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20-X67 SafeIO - Connected Product Information Notice
- EU Declaration FS PLC X20
- EU Declaration of Conformity CE_Declaration_FS_X20
- FS EN 50156 Zertifikat SafeLOGIC, SafeIO
- FTZU 09 ATEX 0083X
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
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.