Category: I/O systems > X20 System > Digital inputs
2 digital inputs Sink connection 3-wire connections 2 counter inputs with 50 kHz counter frequency Gate measurement 24 VDC and GND for sensor supply Software input filter can be configured for entire module The module is equipped with two inputs for 3-wire connections.
Both inputs can be configured as event counters. Gate measurement is only ever possible on one channel.
This module is designed for X20 6-pin terminal blocks. If needed (e.g.
for logistical reasons), the 12-pin terminal block can also be used.
Technical Specifications
Short description
- I/O module = 2 digital inputs 24 VDC for 3-wire connections, special functions
General information
- Diagnostics
- Module run/error = Yes, using LED status indicator and software
- Power consumption
- Bus = 0.15 W
- Internal I/O = 0.82 W
- Certifications
- CE = Yes
- UKCA = Yes
- CRA (Cyber Resilience Act) = In preparation
- ATEX = Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X
- UL = cULus E115267 Industrial control equipment
- HazLoc = cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
- DNV = Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
- CCS = Yes
- LR = ENV1
- KR = Yes
- ABS = Yes
- BV = EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
- KC = Yes
- B&R ID code = 0x1B8E
- Status indicators = I/O function per channel, operating state, module status
- Additional power dissipation caused by actuators (resistive) [W] = -
Digital inputs
- Input filter
- Hardware = ≤10 μs
- Software = Default 0 ms, configurable between 0 and 25 ms in 0.2 ms intervals
- Switching threshold
- Low = <5 VDC
- High = >15 VDC
- Nominal voltage = 24 VDC
- Input characteristics per EN 61131-2 = Type 1
- Input voltage = 24 VDC -15% / +20%
- Input current at 24 VDC = Typ. 10.5 mA
- Input circuit = Sink
- Connection type = 3-wire connections
- Input resistance = Typ. 2.23 kΩ
- Additional functions = 50 kHz event counting, gate measurement
- Insulation voltage between channel and bus = 500 V eff
Event counters
- Quantity = 2
- Signal form = Square wave pulse
- Evaluation = Each positive edge, cyclic counter
- Input frequency = Max. 50 kHz
- Counter 1 = Input 1
- Counter 2 = Input 2
- Counter frequency = Max. 50 kHz
- Counter size = 16-bit
Gate time measurement
- Counter frequency
- Internal = 48 MHz, 24 MHz, 12 MHz, 6 MHz, 3 MHz, 1.5 MHz, 750 kHz, 375 kHz, 187.5 kHz
- Number of gate time measurements = 1
- Signal form = Square wave pulse
- Evaluation = Positive edge - Negative edge
- Counter size = 16-bit
- Length of pause between pulses = ≥100 µs
- Pulse length = ≥20 µs
- Supported inputs = Input 1 or input 2
Sensor power supply
- Power consumption = Max. 12 W
- Voltage = Module power supply minus voltage drop for short-circuit protection
- Voltage drop for short-circuit protection at 500 mA = Max. 2 VDC
- Summation current = 0.5 A
- Short-circuit proof = Yes
Electrical properties
- Electrical isolation = Channel isolated from bus Channel not isolated from channel
Operating conditions
- Mounting orientation
- Horizontal = Yes
- Vertical = Yes
- Installation elevation above sea level
- 0 to 2000 m = No limitation
- >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
- Vertical mounting orientation = -25 to 50°C
- Derating = -
- Storage = -40 to 85°C
- Transport = -40 to 85°C
- Relative humidity
- Operation = 5 to 95%, non-condensing
- Storage = 5 to 95%, non-condensing
- Transport = 5 to 95%, non-condensing
Mechanical properties
- Note = Order 1x terminal block X20TB06 or X20TB12 separately. Order 1x bus module X20BM11 separately.
- Pitch = 12.5 +0.2 mm
