AB 1756-OF4
AB 1756-OF4
AB 1756-OF4
AB 1756-OF4
AB 1756-OF4
AB 1756-OF4
Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail sales1@apterpower.com
  • Lifecycle status

    Active

1756-OF4

/ 4.9
1001 reviews | Need a Specific Revision?
Allen-Bradley 1756-OF4 is a four-channel ControlLogix analog output module for ±10 V or 0...20 mA signals.
In Stock
Ships by Wednesday, October 28
Fast Shipping Available
Get a quick price for 1756-OF4
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for 1756-OF4

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-OF4
  • Product Family:
    ControlLogix
  • Product Type:
    Four-Channel Voltage/Current Analog Output Module
  • Stock:
    1
  • Outputs:
    Four voltage or current outputs
  • Output ranges:
    ±10 V; 0...20 mA
  • Voltage resolution:
    15 bits across 10.5 V; 320 µV/bit
  • Current resolution:
    16 bits across 21 mA; 325 nA/bit
  • Maximum current draw:
    200 mA at 5.1 V DC; 155 mA at 24 V DC
  • Maximum total backplane power:
    4.74 W
  • Drive capability:
    Voltage: greater than 2000 Ω; current: 0...750 Ω
  • Settling time:
    Less than 2 ms to 95% of final value with resistive loads
  • Calibrated accuracy:
    Better than 0.05% of range from 0...21 mA and -10.4...10.4 V
  • Module scan time:
    12 ms floating point; 8 ms integer
  • Output protection:
    ±24 V DC overvoltage; electronically current limited to 21 mA or less
  • Isolation voltage:
    250 V continuous, output channels to backplane; no isolation between output channels
  • Removable terminal blocks:
    1756-TBNH or 1756-TBSH
  • Slot width:
    1
  • Operating temperature:
    Chassis Series C: 0...60 °C; chassis Series B: 0...55 °C
  • Tariff Code:
    9032900090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Signal Ranges Response and Accuracy Configuration Application
  • Four channels can provide either ±10 V voltage or 0...20 mA current outputs
  • Voltage resolution is 320 µV per bit and current resolution is 325 nA per bit
  • Settling time is less than 2 ms to 95% of final value with resistive loads

1756-OF4 is an Allen-Bradley ControlLogix four-channel voltage/current analog output module for chassis-based control systems.

Each channel supports ±10 V or 0...20 mA operation with configurable scaling, program and fault states, clamping, ramping, calibration, and open-circuit detection in current mode.

Before installation or replacement, verify hardware Series, firmware, chassis Series, signal mode, scaling, load impedance, terminal block, shielding, calibration, and the saved Logix configuration.

Availability, condition, price, and shipping time for 1756-OF4 are confirmed during quotation.

Allen-Bradley 1756-OF4 Four-Channel Voltage/Current Analog Output Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Each of the four channels can be configured for plus or minus 10 volts
  • Each channel can alternatively operate over the documented 0 to 20 milliampere range
  • The module uses 15-bit voltage resolution and 16-bit current resolution across the specified spans
  • Settling time is less than 2 milliseconds to 95 percent of final value with resistive loads
  • Calibrated accuracy is better than 0.05 percent of range over the documented voltage and current spans
  • Module error is specified as 0.1 percent of range for voltage and 0.2 percent for current
  • The module supports integer and IEEE 32-bit floating-point data formats
  • Channel configuration includes scaling and selectable Program-mode and Fault-mode output states
  • Output limits and Run-mode ramping can be configured to clamp or slew channel commands
  • Four-channel analog current command in ControlLogix monitoring and control systems
  • Four-channel ±10 V analog command for compatible industrial field devices
  • Marine and offshore monitoring and control auxiliary systems using certified 1756-OF4 Series C hardware
Description
1756-OF4 is an Allen-Bradley ControlLogix four-channel analog output module for voltage or current control signals.

The module supplies four non-isolated outputs selectable for ±10 V or 0...20 mA, with scaling, calibration, ramping, clamping, program/fault states, and open-circuit detection for current output.

Before installation or replacement, confirm the complete catalog number, hardware Series, chassis Series, firmware, signal mode, scaling, load, RTB, shielding, calibration, and saved project.
Revisions

Revision Part #

Also known as

1756-OF4 Ser A
1756-OF4/A, Series A, Rev A
1756-OF4 Ser B
1756-OF4/B, Series B, Rev B
1756-OF4 Ser C
1756-OF4/C, Series C, Rev C
Alternative Names
1756-OF4 1756OF4 1756 OF4 Allen-Bradley 1756-OF4 Rockwell Automation 1756-OF4 AB 1756-OF4 ControlLogix 1756-OF4
Technical notes
1756-OF4 has no channel-to-channel isolation; match Series A, B, or C hardware and verify firmware, chassis Series, voltage/current mode, load impedance, RTB, shielding, scaling, ramp limits, and calibration records.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which data formats can be selected for Allen-Bradley 1756-OF4?
Which data formats can be selected for Allen-Bradley 1756-OF4?
How does engineering-unit scaling work on Allen-Bradley 1756-OF4?
In floating-point mode, each Allen-Bradley 1756-OF4 channel can map configured low and high signal values to corresponding low and high engineering values, allowing the controller to use application-specific units.
Can Allen-Bradley 1756-OF4 limit an output to a configured operating range?
Yes. High Clamp and Low Clamp values can prevent a channel from exceeding its configured limits. The module can also report high-limit and low-limit alarms when a requested value exceeds those boundaries.
What ramping functions are available on Allen-Bradley 1756-OF4?
Allen-Bradley 1756-OF4 supports ramping during Run mode and transitions to configured Program-mode or Fault-mode values. The maximum rate of change is configured in engineering units per second; Run-mode ramping requires floating-point mode.
How can Allen-Bradley 1756-OF4 outputs behave in Program and Fault modes?
Each channel can hold its last output state or transition to a user-defined value. If communication fails while the controller is in Program mode, the outputs can remain in their Program-mode state or change to their configured Fault-mode state.
What does Hold for Initialization do on Allen-Bradley 1756-OF4?
Hold for Initialization keeps the output unchanged until the value commanded by the controller is within 0.1% of full scale of the value currently being held. This supports a smoother transition when control resumes after power-up, reconnection, or Program mode.
What should be checked before replacing Allen-Bradley 1756-OF4?
Confirm Series, firmware, chassis Series, signal mode, scaling, load, RTB, shielding, calibration, ramp limits, and the saved project.