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Allen-Bradley 1756-OF8I product image
Allen Bradley
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1756-OF8I

ControlLogix 8 Point Analog Output

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Lifecycle status: Active
Product at a glance
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Repair Options Available
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Technical Specifications
Drawings
Documents
Downloads
Certifications
Alternative Products
Technotes
Input, current
True
Input, voltage
True
Input, resistor
False
Input, resistance thermometer
False
Input, thermocouple
False
Input signal, configurable
True
Output, current
False
Output, voltage
False
Output signal configurable
False
Analogue inputs configurable
True
Analogue outputs configurable
False
Type of electric connection
Screw-/spring clA connection
Output range
-10…10V, 0…10V, 0…5V, 0…20 Ma
Module keying
Electronic, software configurable
Module error over full temperature range
0.1 %
Module conversion method
R-Ladder DAC, monotonicity with no missing codes
Open circuit detection
Current output = Yes
Drive capability
Current output = 0...1000 Ω, Voltage output =>1000 Ω
Short circuit detection
Voltage output = Yes
Data format
IEEE 32-bit floating point
Wire category
2 - on signal ports
Overvoltage protection
±30V DC (voltage/current)
Settling time
<2 ms to 95% of final value with resistive loads
Total backplane power
Voltage mode = 6.3 W, Current mode with 250 Ω loads = 6.3 W, Current mode with 500 Ω loads = 7.6 W, Current mode with 750 Ω loads = 9.2 W, Current mode with 1000 Ω loads = 10.2 W
Module scan time
1 ms minimum
Thermal dissipation
Voltage mode = 18.4 BTU/hr, Current mode with 250 Ω loads = 18.4 BTU/hr, Current mode with 500 Ω loads = 19.8 BTU/hr, Current mode with 750 Ω loads = 22.2 BTU/hr, Current mode with 1000 Ω loads = 22.9 BTU/hr
Current draw
200mA @ 5.1V, Voltage or current mode with 250 Ω loads = 220mA @ 24V, Current mode with 500 Ω loads = 275mA @ 24V, Current mode with 750 Ω loads = 340mA @ 24V, Current mode with 1000 Ω loads = 385mA @ 24V
Inputs
Eight isolated channels - any combination of voltage or current mode
Power dissipation
Voltage mode: 5.4 W (18.4 BTU/hr), Current mode with 250 Ω loads: 5.4 W (18.4 BTU/hr), Current mode with 500 Ω loads: 5.8 W (19.8 BTU/hr), Current mode with 750 Ω loads: 6.5 W (22.2 BTU/hr), Current mode with 1000 Ω loads: 6.7 W (22.9 BTU/hr)
Resolution
16 bit, ±10.5V (0.32 mV/count), 0...10.5V (0.16 mV/count), 0...5.25V (0.08 mV/count), 0...21 mA (0.32 µA/count)
Wire size
0.33...2.1 mm² (22...14 AWG) solid or stranded shielded copper wire, rated at 90 °C (194 °F) or greater, 1.2 mm (3/64 in.) insulation maximum
Calibrated accuracy
0.05% @ 25°C (77 °F)
Suitable for safety functions
False
Output impedance
46 Ω (Current output)
Surrounding air temperature, max
60 °C
North American temperature code
T4
Emissions
IEC 61000-6-4
ESD immunity
6 kV contact discharges, 8 kV air discharges
EFT/B immunity
±4kV @ 5kHz on signal ports
Relative humidity
5...95% noncondensing
Conducted RF immunity
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
Surge transient immunity
±2 kV line-earth (CM) on shielded signal ports
Operating temperature
0 to 60 °C
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
Nonoperating temperature
-40 °C
RTB keying
User-defined mechanical
Vibration
2 G @ 10...500 Hz
Shock
Operating: 30 G, Non operating: 50 G
Slot width
1
Isolation voltage
250V (continuous), reinforced insulation type, outputs to backplane, 250V (continuous), basic insulation type, output to output
IEC temperature code
T4
Enclosure type rating
None (open-style)
Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)
Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)
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Type Resource Publication
General Product Cutsheet --
General Technical Detail --
General Product Profile --
Technical Data 1756-td002_-en-e 1756-TD002
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
Visit the Technical Documentation Center Search the Literature Library
Available Downloads
  • Firmware for 1756-OF8I v4.012
See All Downloads
China CCC Australian RCM Korean KC IECEx Scheme ATEX
  • China CCC
  • Safety
  • Australian RCM
  • Korean KC
  • IECEx Scheme
  • ATEX
  • American Bureau of Shippin

This product was certified with the above certifications as of 2025-09-10. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Items Per Page:
1-1 of 1
Looking for more Technotes?
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Technical Specifications
Input, current
True
Input, voltage
True
Input, resistor
False
Input, resistance thermometer
False
Input, thermocouple
False
Input signal, configurable
True
Output, current
False
Output, voltage
False
Output signal configurable
False
Analogue inputs configurable
True
Analogue outputs configurable
False
Type of electric connection
Screw-/spring clA connection
Output range
-10…10V, 0…10V, 0…5V, 0…20 Ma
Module keying
Electronic, software configurable
Module error over full temperature range
0.1 %
Module conversion method
R-Ladder DAC, monotonicity with no missing codes
Open circuit detection
Current output = Yes
Drive capability
Current output = 0...1000 Ω, Voltage output =>1000 Ω
Short circuit detection
Voltage output = Yes
Data format
IEEE 32-bit floating point
Wire category
2 - on signal ports
Overvoltage protection
±30V DC (voltage/current)
Settling time
<2 ms to 95% of final value with resistive loads
Total backplane power
Voltage mode = 6.3 W, Current mode with 250 Ω loads = 6.3 W, Current mode with 500 Ω loads = 7.6 W, Current mode with 750 Ω loads = 9.2 W, Current mode with 1000 Ω loads = 10.2 W
Module scan time
1 ms minimum
Thermal dissipation
Voltage mode = 18.4 BTU/hr, Current mode with 250 Ω loads = 18.4 BTU/hr, Current mode with 500 Ω loads = 19.8 BTU/hr, Current mode with 750 Ω loads = 22.2 BTU/hr, Current mode with 1000 Ω loads = 22.9 BTU/hr
Current draw
200mA @ 5.1V, Voltage or current mode with 250 Ω loads = 220mA @ 24V, Current mode with 500 Ω loads = 275mA @ 24V, Current mode with 750 Ω loads = 340mA @ 24V, Current mode with 1000 Ω loads = 385mA @ 24V
Inputs
Eight isolated channels - any combination of voltage or current mode
Power dissipation
Voltage mode: 5.4 W (18.4 BTU/hr), Current mode with 250 Ω loads: 5.4 W (18.4 BTU/hr), Current mode with 500 Ω loads: 5.8 W (19.8 BTU/hr), Current mode with 750 Ω loads: 6.5 W (22.2 BTU/hr), Current mode with 1000 Ω loads: 6.7 W (22.9 BTU/hr)
Resolution
16 bit, ±10.5V (0.32 mV/count), 0...10.5V (0.16 mV/count), 0...5.25V (0.08 mV/count), 0...21 mA (0.32 µA/count)
Wire size
0.33...2.1 mm² (22...14 AWG) solid or stranded shielded copper wire, rated at 90 °C (194 °F) or greater, 1.2 mm (3/64 in.) insulation maximum
Calibrated accuracy
0.05% @ 25°C (77 °F)
Suitable for safety functions
False
Output impedance
46 Ω (Current output)
Surrounding air temperature, max
60 °C
North American temperature code
T4
Emissions
IEC 61000-6-4
ESD immunity
6 kV contact discharges, 8 kV air discharges
EFT/B immunity
±4kV @ 5kHz on signal ports
Relative humidity
5...95% noncondensing
Conducted RF immunity
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
Surge transient immunity
±2 kV line-earth (CM) on shielded signal ports
Operating temperature
0 to 60 °C
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
Nonoperating temperature
-40 °C
RTB keying
User-defined mechanical
Vibration
2 G @ 10...500 Hz
Shock
Operating: 30 G, Non operating: 50 G
Slot width
1
Isolation voltage
250V (continuous), reinforced insulation type, outputs to backplane, 250V (continuous), basic insulation type, output to output
IEC temperature code
T4
Enclosure type rating
None (open-style)
Drawings
Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)
Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)
Sign in to your Rockwell Automation account to view and download technical drawings.
Sign In
Documents
Product Cutsheet General
--
Technical Detail General
--
Product Profile General
--
1756-td002_-en-e Technical Data
1756-TD002
Type Resource Publication
General Product Cutsheet --
General Technical Detail --
General Product Profile --
Technical Data 1756-td002_-en-e 1756-TD002
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
Visit the Technical Documentation Center Search the Literature Library
Downloads
Available Downloads
  • Firmware for 1756-OF8I v4.012
See All Downloads
Certifications
China CCC Australian RCM Korean KC IECEx Scheme ATEX
  • China CCC
  • Safety
  • Australian RCM
  • Korean KC
  • IECEx Scheme
  • ATEX
  • American Bureau of Shippin

This product was certified with the above certifications as of 2025-09-10. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Alternative Products
Items Per Page:
1-1 of 1
Technotes
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
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