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Allen-Bradley 1756-OF8IK ControlLogix 8-Point Isolated Analog Output Module – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley (Rockwell Automation) |
| Model | 1756-OF8IK |
| Product Type | ControlLogix Isolated Analog Output Module |
| Module Function | Analog Voltage / Current Output |
| Number of Outputs | 8 isolated channels |
| Output Configuration | Each channel independently configurable for voltage or current |
| Output Voltage Ranges | -10 to +10 V; 0–10 V; 0–5 V |
| Output Current Range | 0–20 mA |
| Resolution | 16-bit |
| Current Draw at 5.1 V DC | 200 mA |
| Current Draw at 24 V DC | 220–385 mA, depending on output mode and load |
| Total Backplane Power | 6.3–10.2 W, depending on load |
| Power Dissipation | 5.4–6.7 W, depending on load |
| Output Impedance | 46 Ω (current output) |
| Current Output Load | 0–1000 Ω |
| Voltage Output Load | Greater than 1000 Ω |
| Settling Time | Less than 2 ms to 95% of final value with resistive loads |
| Calibrated Accuracy | 0.05% at 25°C |
| Module Error | 0.1% over full temperature range |
| Output-to-Backplane Isolation | 250 V continuous, reinforced insulation |
| Output-to-Output Isolation | 250 V continuous, basic insulation |
| Overvoltage Protection | ±30 V DC |
| Connection | 36-pin interface |
| Compatible Terminal Blocks | 1756-TBCH or 1756-TBS6H |
| Conformal Coating | Yes |
| Mounting | ControlLogix 1756 chassis |
| Operating Temperature | 0 to 60°C |
| Storage Temperature | -40 to 85°C |
| Relative Humidity | 5–95%, non-condensing |
| Dimensions (H × W × D) | Approx. 145 × 35 × 145 mm; estimated module dimensions |
| Weight | Approx. 0.45 kg; supplier-listed weight, packaging excluded |
| Country of Origin | United States (official Rockwell Automation listing) |
| Lifecycle Status | Active |
FAQ
FAQ
Q1: What is the Allen-Bradley 1756-OF8IK used for?
A: It is an 8-channel isolated analog output module used in ControlLogix systems to send voltage and current control signals to industrial field devices.
Q2: How many output channels does the 1756-OF8IK have?
A: It has eight independently isolated analog output channels. Each channel can be configured for voltage or current operation.
Q3: What output signals does the 1756-OF8IK support?
A: It supports voltage ranges of -10 to +10 V, 0–10 V, and 0–5 V, as well as 0–20 mA current output.
Q4: What is the resolution of the 1756-OF8IK?
A: The module provides 16-bit output resolution for accurate analog signal control.
Q5: Is the 1756-OF8IK conformally coated?
A: Yes. The K suffix identifies the conformal-coated version, which offers additional protection against moisture and environmental contaminants.
Q6: What is the difference between 1756-OF8I and 1756-OF8IK?
A: Both models provide eight isolated analog output channels with voltage and current capabilities. The 1756-OF8IK is the conformally coated version, while the standard 1756-OF8I is not.
Q7: What are the dimensions and weight of the 1756-OF8IK?
A: Approximate dimensions are 145 × 35 × 145 mm (H × W × D), and the weight is approximately 0.45 kg, excluding packaging.
Q8: Is the 1756-OF8IK still available?
A: Yes. Rockwell Automation lists the 1756-OF8IK as an active product.
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Packing & Delivery
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