Products Description
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| Mobile | +8613950166376 | ||
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Technical Specifications
| Parameter | Specification |
|---|---|
| Model | Allen-Bradley 1756-IF8I |
| Product Type | Isolated Analog Input Module |
| Series | ControlLogix |
| Number of Inputs | 8 Isolated Analog Inputs |
| Input Signal Types | ±10V, 0–10V, 0–5V, 0–20 mA |
| Channel Isolation | Individually Isolated Channels |
| Resolution | 24 Bit |
| Conversion Method | Sigma-Delta |
| Data Format | IEEE 32-bit Floating Point |
| Minimum Input Scan Time | 1 ms |
| Calibrated Accuracy | ±0.05% @ 25°C |
| Input Impedance | Voltage: ~1 GΩ Powered / Current: 125 Ω |
| Isolation Voltage | 250V Continuous |
| Overvoltage Protection | ±30V DC Maximum |
| Common Mode Noise Rejection | 120 dB @ 50/60 Hz |
| Current Draw | 200 mA @ 5.1V DC |
| Current Draw @ 24V DC | 150–400 mA (Mode Dependent) |
| Total Backplane Power | 4.6–10.6 W |
| Thermal Dissipation | 15.7–24.9 BTU/hr |
| Open Circuit Detection | 5 s |
| Compatible RTB | 1756-TBCH, 1756-TBS6H |
| Mounting Type | ControlLogix Chassis Mount |
| 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 |
| Dimensions (H × W × D) | 145 × 35 × 140 mm |
| Weight | 0.35 kg |
| Certifications | UL, CE, CSA, ATEX, IECEx |
| Product Status | Active |
FAQ
FAQ
Q1: What is the primary function of the 1756-IF8I module?
The module provides 8 individually isolated analog input channels for ControlLogix systems, supporting both voltage and current signals.
Q2: What analog signal ranges are supported?
It supports ±10V, 0–10V, 0–5V, and 0–20 mA input ranges.
Q3: What does the “I” in 1756-IF8I mean?
The “I” indicates isolated channels. Each input channel is electrically isolated to reduce noise and prevent grounding issues between field devices.
Q4: What is the module resolution and scan speed?
The module offers 24-bit resolution with a minimum scan time of 1 ms.
Q5: Which removable terminal blocks are compatible?
Compatible RTBs are 1756-TBCH and 1756-TBS6H.
Q6: What isolation protection does the module provide?
The module provides 250V continuous isolation from inputs to backplane and input-to-input isolation.
Q7: What are the dimensions and weight of the unit?
The dimensions are approximately 145 × 35 × 140 mm, with a weight of about 0.35 kg.
Q8: Is the 1756-IF8I still available?
Yes, Rockwell Automation currently lists the 1756-IF8I 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.
