Best Selling
1756-OF8IH
ControlLogix 8 Pt A/O HART Isolated
Product at a glance
Product at a glance
| Isolation |
250V (continuous), Reinforced insulation type, outputs to backplane. Basic insulation type, output to output, and outputs to ground.
|
|---|---|
| Number Of Channels |
8
|
| Output Signal |
4-20mA
|
| 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 |
0...20mA @ 4...20mA
|
| Load reactance |
10 µH maximum
|
| Terminal block torque specifications |
1756-TBCH: 0.5 Nm (4.4 in-lb)
|
| Module keying |
Electronic, software configurable
|
| Offset drift |
±3 ppm of full scale range/°C (72 nA/°C typical)
|
| Output conversion method |
R-Ladder DAC
|
| Outputs |
8 current
|
| Open circuit detection |
Current output only (output must be set >=0.1 mA)
|
| Drive capability |
50...750 Ω with short circuit survival
|
| Data format |
IEEE 32-bit floating point
|
| Wire category |
2 - on signal ports
|
| Overvoltage protection |
±24V DC
|
| Module error |
0.3% @ 4...20mA
|
| Gain drift with temperature |
±4 ppm of full scale range/°C
|
| Voltage and current ratings |
Backplane: 220mA @ 5.1V DC, 360mA @ 24V DC, Output voltage range: 5...30V DC, Output current range: 0...20mA @ 4...20mA
|
| Settling time |
HART not enabled: <23 ms to 95% with resistive loads, HART enabled: <100 ms to 95% with resistive loads
|
| Module scan time |
Estimate 1 s if all channels are HART enabled, Pass through messages, handheld communications, sary masters, communication errors, or configuration changes can significantly increase the update time.
|
| Current draw |
400 mA (estimated) @ 24V @ 24V
|
| Power dissipation |
6.5 W nominal (maximum), (<6.4 W with 50 Ω load on all channels), (<6.5 W with 250 Ω load on all channels), (<6.7 W with 750 Ω load on all channels)
|
| Resolution |
15 bit across 24 mA, 732 nA per bit
|
| Wire size |
Single wire connection (1756-TBCH): 0.33...2.1 mm² (22...14 AWG) solid or stranded shielded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, Single wire connection (1756-TBS6H): 0.33...2.1 mm² (22...14 AWG) solid or
|
| Calibrated accuracy |
0.15% @ 4...20mA, 25 °C (77 °F)
|
| Suitable for safety functions |
False
|
| Output short circuit protection |
Current electronically limited to <=21 mA with no damage
|
| Surrounding air temperature, max |
60 °C
|
|---|---|
| North American temperature code |
T4A
|
| 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 |
250V (continuous), Reinforced insulation type, outputs to backplane, Basic insulation type, output to output, and outputs to ground.
|
|---|
| Enclosure type rating |
None (open-style)
|
|---|
Sign in to your Rockwell Automation account to view and download technical drawings.
Sign In
| Type | Resource | Publication |
|---|---|---|
| General | Product Cutsheet | -- |
| General | 1756-OF8IH in Current Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-191 Rev 01 | -- |
| General | 1756-OF8IH in Voltage Mode with 1492-AIFM6S-3 or 1492-RAIFM6S-3 41171-193 Rev 1 | -- |
| General | Product Profile | -- |
| General | Technical Detail | -- |
| General | 1756-OF8IH in Voltage Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-196 Rev 1 | -- |
| Technical Data | 1756-td002_-en-e | 1756-TD002 |
| User Manual | 1756-um533_-en-p | 1756-UM533 |
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
- DTM Library Software for the 1756-OF8IH Module v1.001
- Firmware for 1756-OF8IH v1.001
- EDS files for 1756-OF8IH (multi)
- EDS files for ControlLogix Family (multi)
- AOP - Add On Profiles for 1756 HART I/O v40.12.23
- China CCC
- MOROCCO DOC
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.
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Technical Specifications
| Isolation |
250V (continuous), Reinforced insulation type, outputs to backplane. Basic insulation type, output to output, and outputs to ground.
|
|---|---|
| Number Of Channels |
8
|
| Output Signal |
4-20mA
|
| 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 |
0...20mA @ 4...20mA
|
| Load reactance |
10 µH maximum
|
| Terminal block torque specifications |
1756-TBCH: 0.5 Nm (4.4 in-lb)
|
| Module keying |
Electronic, software configurable
|
| Offset drift |
±3 ppm of full scale range/°C (72 nA/°C typical)
|
| Output conversion method |
R-Ladder DAC
|
| Outputs |
8 current
|
| Open circuit detection |
Current output only (output must be set >=0.1 mA)
|
| Drive capability |
50...750 Ω with short circuit survival
|
| Data format |
IEEE 32-bit floating point
|
| Wire category |
2 - on signal ports
|
| Overvoltage protection |
±24V DC
|
| Module error |
0.3% @ 4...20mA
|
| Gain drift with temperature |
±4 ppm of full scale range/°C
|
| Voltage and current ratings |
Backplane: 220mA @ 5.1V DC, 360mA @ 24V DC, Output voltage range: 5...30V DC, Output current range: 0...20mA @ 4...20mA
|
| Settling time |
HART not enabled: <23 ms to 95% with resistive loads, HART enabled: <100 ms to 95% with resistive loads
|
| Module scan time |
Estimate 1 s if all channels are HART enabled, Pass through messages, handheld communications, sary masters, communication errors, or configuration changes can significantly increase the update time.
|
| Current draw |
400 mA (estimated) @ 24V @ 24V
|
| Power dissipation |
6.5 W nominal (maximum), (<6.4 W with 50 Ω load on all channels), (<6.5 W with 250 Ω load on all channels), (<6.7 W with 750 Ω load on all channels)
|
| Resolution |
15 bit across 24 mA, 732 nA per bit
|
| Wire size |
Single wire connection (1756-TBCH): 0.33...2.1 mm² (22...14 AWG) solid or stranded shielded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, Single wire connection (1756-TBS6H): 0.33...2.1 mm² (22...14 AWG) solid or
|
| Calibrated accuracy |
0.15% @ 4...20mA, 25 °C (77 °F)
|
| Suitable for safety functions |
False
|
| Output short circuit protection |
Current electronically limited to <=21 mA with no damage
|
| Surrounding air temperature, max |
60 °C
|
|---|---|
| North American temperature code |
T4A
|
| 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 |
250V (continuous), Reinforced insulation type, outputs to backplane, Basic insulation type, output to output, and outputs to ground.
|
|---|
| Enclosure type rating |
None (open-style)
|
|---|
Drawings
Sign in to your Rockwell Automation account to view and download technical drawings.
Sign In
Documents
|
Product Cutsheet
General
-- |
|
1756-OF8IH in Current Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-191 Rev 01
General
-- |
|
1756-OF8IH in Voltage Mode with 1492-AIFM6S-3 or 1492-RAIFM6S-3 41171-193 Rev 1
General
-- |
|
Product Profile
General
-- |
|
Technical Detail
General
-- |
|
1756-OF8IH in Voltage Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-196 Rev 1
General
-- |
|
1756-td002_-en-e
Technical Data
1756-TD002 |
|
1756-um533_-en-p
User Manual
1756-UM533 |
| Type | Resource | Publication |
|---|---|---|
| General | Product Cutsheet | -- |
| General | 1756-OF8IH in Current Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-191 Rev 01 | -- |
| General | 1756-OF8IH in Voltage Mode with 1492-AIFM6S-3 or 1492-RAIFM6S-3 41171-193 Rev 1 | -- |
| General | Product Profile | -- |
| General | Technical Detail | -- |
| General | 1756-OF8IH in Voltage Mode with 1492-AIFM8S-3 or 1492-RAIFM8S-3 41171-196 Rev 1 | -- |
| Technical Data | 1756-td002_-en-e | 1756-TD002 |
| User Manual | 1756-um533_-en-p | 1756-UM533 |
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
- DTM Library Software for the 1756-OF8IH Module v1.001
- Firmware for 1756-OF8IH v1.001
- EDS files for 1756-OF8IH (multi)
- EDS files for ControlLogix Family (multi)
- AOP - Add On Profiles for 1756 HART I/O v40.12.23
Certifications
- China CCC
- MOROCCO DOC
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
Technotes
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Loading
Copyright ©2025 Rockwell Automation, Inc.