B&R X20CM1201
Command-dependent digital pattern output Counter-dependent output circuit Event-controlled abort criteria 4 digital inputs 4 digital channels, configurable as inputs or outputs The module can be used to configure and carry out simple movements. For this purpose, the module has one AB encoder input and a total of 8 digital channels. Four of them are inputs, and the other 4 can be set as either an input or an output. Various output bit patterns are stored directly in the module. The module is perfectly suited for easy to create drive control tasks for program and event controlled motor movements. Feed movements using drives with 2 speeds and forward/reverse movement are created easily and efficiently.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 1 AB incremental encoder 24 V, 4 digital inputs, 4 channels configurable as inputs or outputs |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator and software (output state) |
| Power consumption / Bus | 0.01 W |
| Power consumption / Internal I/O | 1.5 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| 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 / KC | Yes |
| Input voltage | 24 VDC -15% / +20% |
| B&R ID code | 0x21EF |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | - |
| Type of signal lines | Shielded lines must be used for all signal lines. |
Digital inputs
| Input filter / Hardware | ≤2 μs |
| Input filter / Software | - |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Quantity | 4 + 4 additional channels configurable as inputs or outputs |
| Nominal voltage | 24 VDC |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Approx. 1.3 mA |
| Input circuit | Sink |
| Connection type | 1-wire connections |
| Input resistance | 18.4 kΩ |
| Insulation voltage between channel and bus | 500 Veff |
AB incremental encoder
| Quantity | 1 |
| Encoder inputs | 24 V, asymmetrical |
| Counter size | 32-bit |
| Input frequency | Max. 100 kHz |
| Evaluation | 4x |
| Encoder power supply | Module-internal, max. 600 mA |
| Overload characteristics of encoder power supply | Short-circuit proof, overload-proof |
Digital outputs
| Switching delay / 0 → 1 | <2 µs |
| Switching delay / 1 → 0 | <2 µs |
| Switching frequency / Resistive load | Max. 24 kHz |
| Switching frequency / Inductive load | See section "Switching inductive loads" (at 90% duty cycle). |
| Quantity | Up to 4, configuration as input or output using software |
| Variant | Push / Pull / Push-Pull |
| Nominal voltage | 24 VDC |
| Switching voltage | 24 VDC -15% / +20% |
| Nominal output current | 0.1 A |
| Total nominal current | 0.4 A |
| Connection type | 1-wire connections |
| Output circuit | Sink or source |
| Output protection | Thermal shutdown in the event of overcurrent or short circuit, integrated protection for switching inductive loads |
| Actuator power supply | Module-internal, max. 600 mA |
| Diagnostic status | Output monitoring |
| Leakage current when the output is switched off | Max. 25 µA |
| Residual voltage | <0.9 V at 0.1 A nominal current |
| Peak short-circuit current | <10 A |
| Switch-on in the event of overload shutdown or short-circuit shutdown | Approx. 10 ms (depends on the module temperature) |
| Braking voltage when switching off inductive loads | Switching voltage + 0.6 VDC |
| Insulation voltage between channel and bus | 500 Veff |
Electrical properties
| Electrical isolation | Channel isolated from bus Channel not isolated from channel |
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 | - |
| 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
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.