Allen-Bradley 1756-IF6I
ControlLogix 6 Point Isolated Analogue Input Module
Read from the product label
- Maker
- Allen-Bradley
- Part no.
- 1756-IF6I
- Serial / rev.
- as printed on your unit
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Allen-Bradley 1756-IF6I ControlLogix analogue input module, discontinued: six individually isolated voltage or current inputs, 16 bit resolution.
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1756-IF6I
- Product family
- ControlLogix I/O Modules (1756)
- Type
- Analog input module
- Category
- PLCs and I/O › Analogue I/O modules
- Lifecycle
- Discontinued
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1756-IF6I
- Type
- Analog input module
- Application
- I/O module
- Used with
- ControlLogix 1756 chassis
- Display
- Module Health, In Calibration,Mode
- Input Signal
- +/- 10V, 0-10.5V, 0-5.25V,0-21mA
- Isolation
- 250 V continuous between,inputs
- Number Of Channels
- 6
- Special Features
- Per Point Isolation
- Analogue inputs configurable
- Yes
- Calibrated accuracy
- Better than 0.1% of range @ 25 °C (77 °F)
- Channel bandwidth
- 15 Hz
- Common mode noise rejection
- 120 dB @ 60 Hz, 100 dB @ 50 Hz
- Conducted RF immunity
- 10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports
- Current draw
- 250mA @ 5.1V, 100mA @ 24V
- Data format
- Integer mode (left justified, 2 s complement) IEEE 32-bit floating point
- EFT/B immunity
- ±2kV @ 5kHz on shielded signal ports
- Emissions
- IEC 61000-6-4
- Enclosure type rating
- None (open-style)
- ESD immunity
- 6 kV contact discharges, 8 kV air discharges
- Input, current
- Yes
- Input impedance
- Voltage: >10 MΩ, Current: 249 Ω
- Input range
- ±10.5V @ 0...10.5V, 0...5.25V @ 0...21mA
- Inputs
- 6 individually isolated
- Input signal, configurable
- Yes
- Input, voltage
- Yes
- Isolation voltage
- 250V (continuous), basic insulation type, input channels-to-backplane, and input channel-to-channel Routine tested at 1350V AC @ 2s
- Module conversion method
- Sigma-Delta
- Module error
- 0.54% of range
Show all 52 specificationsShow fewer
- Module input scan time, min
- 25 ms minimum - floating point, 10 ms minimum - integer
- Module keying
- Electronic, software configurable
- Normal mode noise rejection
- 60 dB @ 60 Hz
- Offset drift
- 2 µV/°C
- Onboard data alarming
- Yes
- Open circuit detection time
- Positive full scale reading within 5 s
- Overvoltage protection
- Voltage: 120V AC/DC maximum, Current: 8V AC/DC (with onboard current resistor), maximum
- Power dissipation
- Voltage: 3.7 W, maximum, Current: 4.3 W, maximum
- Radiated RF immunity
- 10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
- Real-time channel sampling
- Yes
- Relative humidity
- 5...95% noncondensing
- Resolution
- 16 bit, 10.5V: 343 µV/bit, 0...10.5V: 171 µV/bit, 0...5.25V: 86 µV/bit, 0...21 mA: 0.34 µA/bit
- RTB keying
- User-defined mechanical
- Scaling to engineering units
- Yes
- Settling time
- <80 ms to 5% of full scale
- Shock
- Operating: 30 G, Nonoperating: 30 G
- Slot width
- 1
- Surge transient immunity
- ±2 kV line-earth (CM) on shielded signal ports
- Thermal dissipation
- Voltage: 12.62 BTU/hr, Current: 14.32 BTU/hr
- Total backplane power
- 3.7 W
- Vibration
- 2 G @ 10...500 Hz
- Wire category
- Category: 2
Technical documents (1)
Key features
- Six individually isolated analogue input channels
- Voltage or current input, configurable per channel
- Sigma-Delta conversion with 16 bit resolution
- Integer or IEEE 32-bit floating point data format
- Onboard data alarming and scaling to engineering units
About the Allen-Bradley 1756-IF6I
The 1756-IF6I is a ControlLogix 6 point isolated analogue input module, now discontinued. Its six individually isolated inputs accept ±10V, 0-10.5V, 0-5.25V or 0-21mA signals, with 16 bit resolution, a channel bandwidth of 15 Hz and calibrated accuracy better than 0.1% of range at 25 °C. Isolation is 250V continuous between channels and the backplane, and between channels.
What is the 1756-IF6I used for?
It reads analogue voltage and current signals into a ControlLogix system where each input must be isolated from the others. It offers onboard data alarming, real-time channel sampling and scaling to engineering units, and returns data in integer mode or as IEEE 32-bit floating point.
Lifecycle and successor
Discontinued (Rockwell Automation lifecycle status, checked 24 October 2026).
Before you order
What to photograph or confirm so the right unit is quoted.
Read the catalog number 1756-IF6I, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.
Other parts in the Allen-Bradley ControlLogix I/O Modules family
Listed for reference. They differ from the 1756-IF6I in rating, supply, interface or function and are not interchangeable with it unless Allen-Bradley says so. Match the part number on your unit.
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|---|---|---|---|---|---|
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