Best Selling
1756-OF8H
ControlLogix 8 Pt A/O I or V HART Module
Product at a glance
Product at a glance
| Isolation |
None between channels (Single Ended)
|
|---|---|
| Number Of Channels |
8
|
| Output Signal |
+/- 10.4V, 0-20 mA, 4-20 mA
|
| 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
|
| Wire type |
Copper
|
| Output range |
-10…10V, 0…20 mA, 4…20 mA
|
| Load reactance |
Voltage: 1 µF, Current: 10 µH
|
| Terminal block torque specifications |
1756-TBNH: 1.36 Nm (12 in-lb.)
|
| Input conversion method |
Successive approximation
|
| Module keying |
Electronic, software configurable
|
| Offset drift |
100 µV/°C, 200 nA/°C
|
| Output conversion method |
R-Ladder DAC, monotonicity with no missing codes
|
| Outputs |
Eight voltage or current, one HART modem per module
|
| Data format |
Integer mode (left justified, 2 s complement) IEEE 32-bit floating point
|
| Wire category |
2 - on signal ports
|
| Overvoltage protection |
±24V DC
|
| Module error |
Voltage: 0.15% of range, Current: 0.3% of range
|
| Gain drift with temperature |
Voltage: 20 ppm/°C, Current: 35 ppm/°C
|
| Voltage and current ratings |
Backplane: 5.1V DC @ 230mA, 24V DC @ 230mA, Output voltage: -10...+10.4V, Output current: 4...20 mA
|
| Settling time |
Current (no HART): <23 ms to 95% with resistive loads, current (with HART): <37 ms to 95% with resistive loads, voltage: <8.5 ms to 95% with resistive loads
|
| Total backplane power |
6.54 W
|
| Thermal dissipation |
16.78 BTU/h
|
| Power dissipation |
4.92 W
|
| Resolution |
15...16 bit for all ranges
|
| Wire size |
1756-TBNH: Single wire connection: 0.33...2.1 mm² (22...14 AWG) solid or stranded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, 1756-TBNH: Double wire connection: 0.33...1.3 mm² (22...16 AWG) solid or stranded cop
|
| Calibrated accuracy |
Voltage: Better than 0.1% of range @ 25 °C (77 °F) with HART disabled, Current: Better than 0.15% of range @ 25 °C (77 °F) with HART disabled
|
| Open circuit detection time |
Current output only (output must be set to <0.1 mA)
|
| Module HART scan time |
Analog: 12 ms, minimum, floating point, HART: typically 1 s per HART channel enabled. Estimate 10 s if all 8 channels have HART enabled, Pass through messages, handheld communicators, sary masters, communication errors, or configuration changes can s
|
| Suitable for safety functions |
False
|
| 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 |
±2kV @ 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 |
±2kV line-earth (CM) on shielded ports
|
| Operating temperature |
0 °C <60 °C (32 °F <140 °F)
|
| 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
|
| Calibration interval |
12 mo typical
|
|---|---|
| ATEX temperature code |
T4
|
| IECEx temperature code |
T4
|
| Isolation voltage |
50V (continuous), basic insulation type, output channels to backplane, No isolation between individual output channels type tested at 1500V AC @ 60s
|
|---|
| Enclosure type rating |
None (open-style)
|
|---|
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DWG) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DWG) |
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| Type | Resource | Publication |
|---|---|---|
| General | Product Profile | -- |
| General | Selection Guide | 1756-SG001 |
| General | Technical Detail | -- |
| General | User Manual | 1756-UM533 |
| General | Product Cutsheet | -- |
| 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
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Available Downloads
- Firmware for 1756-OF8H v2.002
- AOP - Add On Profiles for 1756 HART I/O v40.12.23
- Safety
- American Bureau of Shippin
This product was certified with the above certifications as of 2025-10-08. 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.
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
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Technical Specifications
| Isolation |
None between channels (Single Ended)
|
|---|---|
| Number Of Channels |
8
|
| Output Signal |
+/- 10.4V, 0-20 mA, 4-20 mA
|
| 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
|
| Wire type |
Copper
|
| Output range |
-10…10V, 0…20 mA, 4…20 mA
|
| Load reactance |
Voltage: 1 µF, Current: 10 µH
|
| Terminal block torque specifications |
1756-TBNH: 1.36 Nm (12 in-lb.)
|
| Input conversion method |
Successive approximation
|
| Module keying |
Electronic, software configurable
|
| Offset drift |
100 µV/°C, 200 nA/°C
|
| Output conversion method |
R-Ladder DAC, monotonicity with no missing codes
|
| Outputs |
Eight voltage or current, one HART modem per module
|
| Data format |
Integer mode (left justified, 2 s complement) IEEE 32-bit floating point
|
| Wire category |
2 - on signal ports
|
| Overvoltage protection |
±24V DC
|
| Module error |
Voltage: 0.15% of range, Current: 0.3% of range
|
| Gain drift with temperature |
Voltage: 20 ppm/°C, Current: 35 ppm/°C
|
| Voltage and current ratings |
Backplane: 5.1V DC @ 230mA, 24V DC @ 230mA, Output voltage: -10...+10.4V, Output current: 4...20 mA
|
| Settling time |
Current (no HART): <23 ms to 95% with resistive loads, current (with HART): <37 ms to 95% with resistive loads, voltage: <8.5 ms to 95% with resistive loads
|
| Total backplane power |
6.54 W
|
| Thermal dissipation |
16.78 BTU/h
|
| Power dissipation |
4.92 W
|
| Resolution |
15...16 bit for all ranges
|
| Wire size |
1756-TBNH: Single wire connection: 0.33...2.1 mm² (22...14 AWG) solid or stranded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, 1756-TBNH: Double wire connection: 0.33...1.3 mm² (22...16 AWG) solid or stranded cop
|
| Calibrated accuracy |
Voltage: Better than 0.1% of range @ 25 °C (77 °F) with HART disabled, Current: Better than 0.15% of range @ 25 °C (77 °F) with HART disabled
|
| Open circuit detection time |
Current output only (output must be set to <0.1 mA)
|
| Module HART scan time |
Analog: 12 ms, minimum, floating point, HART: typically 1 s per HART channel enabled. Estimate 10 s if all 8 channels have HART enabled, Pass through messages, handheld communicators, sary masters, communication errors, or configuration changes can s
|
| Suitable for safety functions |
False
|
| 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 |
±2kV @ 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 |
±2kV line-earth (CM) on shielded ports
|
| Operating temperature |
0 °C <60 °C (32 °F <140 °F)
|
| 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
|
| Calibration interval |
12 mo typical
|
|---|---|
| ATEX temperature code |
T4
|
| IECEx temperature code |
T4
|
| Isolation voltage |
50V (continuous), basic insulation type, output channels to backplane, No isolation between individual output channels type tested at 1500V AC @ 60s
|
|---|
| Enclosure type rating |
None (open-style)
|
|---|
Drawings
| Drawings | |
|---|---|
| 3-Dimensional STEP model (STP) | Download (ZIP) |
| Product Drawing | Drawing (DWG) |
| Drawings |
|---|
| 3-Dimensional STEP model (STP) Download (ZIP) |
| Product Drawing Drawing (DWG) |
Sign in to your Rockwell Automation account to view and download technical drawings.
Sign In
Documents
|
Product Profile
General
-- |
|
Selection Guide
General
1756-SG001 |
|
Technical Detail
General
-- |
|
User Manual
General
1756-UM533 |
|
Product Cutsheet
General
-- |
|
1756-td002_-en-e
Technical Data
1756-TD002 |
| Type | Resource | Publication |
|---|---|---|
| General | Product Profile | -- |
| General | Selection Guide | 1756-SG001 |
| General | Technical Detail | -- |
| General | User Manual | 1756-UM533 |
| General | Product Cutsheet | -- |
| 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-OF8H v2.002
- AOP - Add On Profiles for 1756 HART I/O v40.12.23
Certifications
- Safety
- American Bureau of Shippin
This product was certified with the above certifications as of 2025-10-08. 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.
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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