Rockwell Automation 1756-OF8I

Selling Points

  • 11. Isolated Outputs: The 1756-OF8I features 8 isolated analog output channels, ensuring that each output is electrically isolated from the others, which enhances system reliability and reduces the risk of electrical interference.;
  • 22. High Precision: With a 16-bit resolution, the module offers high precision in analog output, making it suitable for applications requiring precise control and measurement.;
  • 33. Versatile Output Modes: The module supports both voltage and current output modes, allowing users to choose the most suitable output type for their specific application needs.;
  • 44. Robust Design: Designed for industrial environments, the 1756-OF8I operates within a wide temperature range (0°C to 60°C) and can withstand high relative humidity and vibration, ensuring reliable operation under harsh conditions.;
  • 55. Compliance with Industry Standards: The module is certified to various international standards, including ATEX, CE, C-Tick, and IECEx, ensuring compliance with global regulatory requirements and enhancing its use in diverse industrial settings.
Product Details
1756-OF8I
Rockwell Automation

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Dimension Unit
CM
Weight Unit
KG
Weight
0.363
Stock Status
STOCKED
Dimension Length
23.368
Dimension Width
17.78
Lead Time
5
Dimension Height
5.588
Quick Turnaround
false
Preferred Availability
true
Repairable
REPAIRABLE
Enclosure type rating
None (open-style)
IEC temperature code
T4
Isolation voltage
250V (continuous), reinforced insulation type, outputs to backplane, 250V (continuous), basic insulation type, output to output
Slot width
1
Shock
Operating: 30 G, Non operating: 50 G
Vibration
2 G @ 10...500 Hz
RTB keying
User-defined mechanical
Nonoperating temperature
-40 °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
Operating temperature
0 to 60 °C
Surge transient immunity
±2 kV line-earth (CM) on shielded signal ports
Conducted RF immunity
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
Relative humidity
5...95% noncondensing
EFT/B immunity
±4kV @ 5kHz on signal ports
ESD immunity
6 kV contact discharges, 8 kV air discharges
Emissions
IEC 61000-6-4
North American temperature code
T4
Surrounding air temperature, max
60 °C
Output impedance
46 ? (Current output)
Suitable for safety functions
No
Calibrated accuracy
0.05% @ 25°C (77 °F)
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
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)
Power dissipation
Voltage mode: 5.4 W (18.4 BTU/hr), Current mode with 250 ? loads: 5.4 W (18.4 BTU/hr), Current mode with 500 ? loads: 5.8 W (19.8 BTU/hr), Current mode with 750 ? loads: 6.5 W (22.2 BTU/hr), Current mode with 1000 ? loads: 6.7 W (22.9 BTU/hr)
Inputs
Eight isolated channels - any combination of voltage or current mode
Current draw
200mA @ 5.1V, Voltage or current mode with 250 ? loads = 220mA @ 24V, Current mode with 500 ? loads = 275mA @ 24V, Current mode with 750 ? loads = 340mA @ 24V, Current mode with 1000 ? loads = 385mA @ 24V
Thermal dissipation
Voltage mode = 18.4 BTU/hr, Current mode with 250 ? loads = 18.4 BTU/hr, Current mode with 500 ? loads = 19.8 BTU/hr, Current mode with 750 ? loads = 22.2 BTU/hr, Current mode with 1000 ? loads = 22.9 BTU/hr
Module scan time
1 ms minimum
Total backplane power
Voltage mode = 6.3 W, Current mode with 250 ? loads = 6.3 W, Current mode with 500 ? loads = 7.6 W, Current mode with 750 ? loads = 9.2 W, Current mode with 1000 ? loads = 10.2 W
Settling time
<2 ms to 95% of final value with resistive loads
Overvoltage protection
±30V DC (voltage/current)
Wire category
2 - on signal ports
Data format
IEEE 32-bit floating point
Short circuit detection
Voltage output = Yes
Drive capability
Current output = 0...1000 ?, Voltage output =>1000 ?
Open circuit detection
Current output = Yes
Module conversion method
R-Ladder DAC, monotonicity with no missing codes
Module error over full temperature range
0.1 %
Module keying
Electronic, software configurable
Output range
-10…10V, 0…10V, 0…5V, 0…20 Ma
Type of electric connection
Screw-/spring clA connection
Analogue outputs configurable
No
Analogue inputs configurable
Yes
Output signal configurable
No
Output, voltage
No
Output, current
No
Input signal, configurable
Yes
Input, thermocouple
No
Input, resistance thermometer
No
Input, resistor
No
Input, voltage
Yes
Input, current
Yes

Specifications may be subject to change without notice