




Product Description
| Category | Item | Specification |
|---|---|---|
| Basic Information | Catalog Number | 1756-IT6I2 |
| Manufacturer | Rockwell Automation Allen‑Bradley | |
| Series | ControlLogix 6-Channel Isolated Thermocouple / mV Input Module (Enhanced Generation 2) | |
| Lifecycle Status | Active Production | |
| Standard Warranty | 1‑year factory warranty | |
| Mounting | Occupies 1 slot in 1756 ControlLogix chassis | |
| Enclosure Rating | Open‑style, IP20 (cabinet installation only) | |
| Net Weight | Approx. 0.28 kg | |
| Dimension (W × H × D) | 35 mm × 149 mm × 87 mm | |
| Model Code Breakdown |
1756 = ControlLogix platform
|
|
| Channel Configuration | Channel Count | 6 analog input channels, each channel individually isolated |
| Wiring Mode | Differential wiring (each channel independent +/− terminals) | |
| Supported Input Types (per channel selectable) | Thermocouple Types | J, K, E, N, R, S, T, B, L, U, C (extended thermocouple curve library) |
| Millivolt Range | −12…+12 mV, −50…+50 mV, −100…+100 mV | |
| CJC (Cold Junction Compensation) | Built-in per-channel cold junction compensation; accuracy ±0.25 ℃ (enhanced vs Gen1 ±0.5 ℃) | |
| Analog Performance (Gen2 Enhanced) | ADC Resolution | 24-bit sigma-delta per channel |
| Input Impedance | >10 MΩ differential | |
| Temperature Accuracy @ 25 ℃ |
Type K: ±0.3 ℃ (typical); Type J: ±0.3 ℃ (typical)
|
|
| Channel Update Rate |
100 ms per channel (normal) / 25 ms per channel (fast)
|
|
| Built-in Filter | Programmable digital filter; 50/60 Hz noise rejection; notch filter selectable | |
| Isolation Spec | Channel ↔ Channel | 250 V AC continuous reinforced isolation |
| Input ↔ Backplane | 250 V AC continuous reinforced isolation | |
| Feature Benefit | Eliminates ground loops, allows thermocouples at different reference potentials | |
| Electrical Ratings | Backplane Current Draw | 195 mA @ 5.1 V DC; 90 mA @ 24 V DC |
| Max Power Dissipation | 4.0 W | |
| Terminal & Wiring | Removable Terminal Block | 36‑pin: 1756-TBCH (spring clamp) / 1756-TBS6H (screw) |
| Recommended Wire Size | 0.34 ~ 1.5 mm² copper wire; thermocouple extension wire recommended | |
| Front Panel & Diagnostics | Status Indicators | Module OK LED, CAL status LED, per-channel status LEDs |
| Diagnostics | Over-range / under-range detection, open-circuit (broken thermocouple) detection per channel, CJC fault monitoring, module health reporting, sensor drift warning | |
| Compatibility | Supported Controllers | ControlLogix 5570/5580, GuardLogix controllers |
| Programming Software | Studio 5000 Logix Designer (V20 or later), RSLinx Classic | |
| Environmental Ratings | Operating Ambient Temperature | 0 ℃ ~ +60 ℃ |
| Storage & Transport Temperature | -40 ℃ ~ +85 ℃ | |
| Relative Humidity | 5%–95% RH, non‑condensing | |
| Altitude | Full rating up to 2000 m; derate above 2000 m | |
| Global Compliance Certifications | Approvals | UL, cUL, CE, CSA, ATEX, IECEx; Class I Div.2 hazardous location certified |
| EMC Classification | Industrial Class A equipment | |
| Variant Distinction Note | 1756-IT6I2 vs 1756-IT6I (Gen1) |
IT6I2: 24-bit ADC, ±0.3℃ accuracy, 25ms fast update, extended thermocouple types, enhanced CJC
|
| 1756-IT6I2 vs 1756-IR6I |
IT6I2: Thermocouple / mV input (enhanced)
|
|
| Coated Version | 1756-IT6I2K (conformal coating for corrosive environments) | |
| XT Wide Temp Version | 1756-IT6I2XT | |
| Core Feature Summary | Key Advantages | Enhanced Generation 2 6-channel individually isolated thermocouple/mV input module; 24-bit high-resolution ADC delivers ±0.3℃ measurement accuracy; 2× faster channel update rate vs Gen1 for high-speed temperature profiling; extended thermocouple type support covers C, U, L specialty sensors; per-channel open-wire and drift diagnostics simplify predictive maintenance; ideal for high-precision multi-zone temperature control in demanding process applications |
| Typical Industrial Applications | Application Scenarios | Semiconductor furnace precision temperature control, aerospace heat treatment profiling, pharmaceutical sterilization validation, chemical reactor high-accuracy thermocouple acquisition, power plant boiler temperature monitoring, glass manufacturing multi-zone kiln control |



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How many months warranty do you provide ? 6 months warranty is provided to our products. The length of the warranty depends on the nature of the products.
What should I do if the item quality is bad / does not fit ?
Normally any quality problems, please return to exchange a brand new one within 14 days or purchase. We will pay for the return postage.Kindly contact our customer support for more details.
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