Configured for analog signal generation in a ControlLogix system, the Allen-Bradley 1756-OF4 (1756OF4 Analog Output Module) provides four configurable voltage or current output channels.

Model Identification

The supplied model references identify the same ControlLogix analog output hardware:

• Catalog Number: 1756-OF4
• Alternate Model Reference: 1756OF4
• Spare Model Reference: 1756-OF4/A
• Module Type: Analog Output Module
• Series: ControlLogix
• Output Channels: 4

No functional suffix breakdown is assigned beyond the catalog references provided.

Electrical Specifications

ControlLogix Signal Processing

The 1756-OF4 converts controller output commands into four analog field signals. Each channel supports voltage or current output operation within the supplied ranges.

The module is part of the ControlLogix I/O architecture and communicates with the controller through the ControlLogix backplane. The supplied data does not specify channel-to-channel isolation, output accuracy, load resistance, or backplane current consumption.

Ordering Configuration

• 1 x Allen-Bradley 1756-OF4 ControlLogix Analog Output Module
• No additional terminal block, removable terminal housing, or wiring accessory is specified in the supplied product data.
• Any required field wiring accessories should be selected according to the installed ControlLogix chassis and terminal arrangement.

Installation Considerations

• Install the module in a compatible ControlLogix chassis with power removed when required by the applicable installation procedure.
• Verify the selected channel configuration before connecting voltage or current field wiring.
• Separate analog signal wiring from high-voltage and high-current conductors where practical.
• Use appropriate shield termination practices for analog signal wiring according to the system grounding design.
• Confirm the connected field device accepts the configured 0-20 mA or +/-10 VDC signal range.
• Do not infer unsupported output loading, isolation, or accuracy specifications from the catalog number alone.
• Allow adequate enclosure clearance for module installation and terminal access.

Technical FAQs

• What type of module is the 1756-OF4?
  The 1756-OF4 is a four-channel ControlLogix analog output module supporting voltage and current output signals.
• How many analog outputs are provided?
  The module provides 4 analog output channels.
• What voltage range is specified?
  The supplied data specifies a voltage output range of +/-10 VDC.
• What current range is specified?
  The supplied data specifies a current output range of 0-20 mA.
• What is the output resolution?
  The supplied product information specifies a 15-bit output resolution.
• Is the module a digital output card?
  No. The 1756-OF4 is an analog output module intended to generate voltage or current signals.
• Is operating temperature specified?
  No operating temperature value was provided in the supplied technical information, so no specific range is assigned here.
• Does the supplied data specify power consumption?
  No. Power consumption and backplane current values were not provided and should be verified against the applicable technical documentation.