Products Description
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| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | Allen-Bradley 1756-OF8I |
| Product Type | Isolated Analog Output Module |
| Series | ControlLogix |
| Number of Outputs | 8 Individually Isolated Outputs |
| Output Signal Types | ±10V, 0–10V, 0–5V, 0–20 mA |
| Resolution | 16 Bit |
| Data Format | IEEE 32-bit Floating Point |
| Conversion Method | R-Ladder DAC |
| Module Scan Time | 1 ms Minimum |
| Settling Time | < 2 ms to 95% of Final Value |
| Output Accuracy | ±0.05% @ 25°C |
| Isolation Voltage | 250V Continuous |
| Channel Isolation | Output-to-Output Isolation |
| Output Load Capability | Current: 0–1000 Ω / Voltage: ≥1000 Ω |
| Open Circuit Detection | Yes (Current Output) |
| Short Circuit Detection | Yes (Voltage Output) |
| Overvoltage Protection | ±30V DC |
| Current Draw @ 5.1V DC | 200 mA |
| Current Draw @ 24V DC | 220–385 mA (Load Dependent) |
| Total Backplane Power | 6.3–10.2 W |
| Power Dissipation | 5.4–6.7 W |
| Thermal Dissipation | 18.4–22.9 BTU/hr |
| Compatible RTB | 1756-TBCH, 1756-TBS6H |
| Mounting Type | ControlLogix Chassis Mount |
| Dimensions (H × W × D) | 145 × 35 × 140 mm |
| Weight | Approx. 0.35 kg |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5–95% Non-Condensing |
| Vibration Resistance | 2 g @ 10–500 Hz |
| Shock Resistance | 30 g Operating |
| Certifications | UL, CE, CSA, ATEX, IECEx |
| Product Status | Active |
FAQ
FAQ
Q1: What is the main function of the 1756-OF8I module?
The module provides 8 isolated analog output channels for voltage and current control signals in ControlLogix systems.
Q2: What output ranges are supported?
It supports ±10V, 0–10V, 0–5V, and 0–20 mA analog output ranges.
Q3: What does the “I” in 1756-OF8I indicate?
The “I” designates isolated channels, meaning each output is electrically isolated to reduce grounding and noise issues.
Q4: Does the module support both current and voltage outputs simultaneously?
Yes. Each of the 8 isolated channels can be individually configured for voltage or current mode.
Q5: Which removable terminal blocks are compatible?
Compatible RTBs include 1756-TBCH and 1756-TBS6H.
Q6: What diagnostic features are included?
The module supports open-circuit detection, short-circuit detection, module health diagnostics, and communication status monitoring.
Q7: What are the physical dimensions of the module?
The dimensions are approximately 145 mm (H) × 35 mm (W) × 140 mm (D).
Q8: Is the 1756-OF8I still available?
Yes. Rockwell Automation currently lists the 1756-OF8I as an active product.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
