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ControlLogix 8 Pt A/I HART Isolated
SKU: 1756-IF8IH
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Short Description
Description:
A high-performance analogue input module from the ControlLogix series, the 1756-IF8IH has eight separately isolated current input channels and built-in HART connectivity.
What distinguishes this module is its per-channel isolation and dedicated HART modem for each input, which enable for simultaneous analogue measurement and digital communication with smart field devices without crosstalk or interference.
Each channel has current levels of 0-20 mA and 4-20 mA, making it perfect for connecting to industrial transmitters that monitor pressure, flow, temperature, and other process variables.
The module has real-time sampling, advanced diagnostics, and inbuilt filtering to ensure accurate and dependable data capture even in electrically loud conditions.
With its isolated architecture, the 1756-IF8IH improves system flexibility, safety, and troubleshooting capabilities, particularly in complex or distributed control systems.
It's a go-to solution in industries like oil and gas, chemical processing, and pharmaceuticals, where precision and dependability are critical.
Buy currently uses Select Automation shop pricing and checkout.
Input Configuration:
Channels: 8 individually isolated differential current inputs.
Input ranges:
0–20 mA.
4–20 mA (preferred for HART devices).
Resolution: 16 to 21 bits depending on configuration.
Input impedance: High, suitable for precision current loop measurements.
Isolation: Channel-to-channel isolation for enhanced noise immunity and safety.
HART Communication:
Protocol support: HART 5, 6, and 7.
Modem: 1 dedicated HART modem per channel.
Supported configurations:
Analog only.
Analog + HART PV.
Analog + full HART data per channel.
Limitations:
No support for burst mode, PSK, or multi-drop networks.
Automatically disables burst devices upon detection.
Diagnostics & Filtering:
Open-circuit detection:
Reports negative full-scale value within 5 seconds (4–20 mA range).
Reports 0 mA in 0–20 mA range.
Over/under-range detection: Yes.
Filters:
ADC filter for 50/60 Hz rejection.
Per-channel digital filters to reduce noise transients.
Sampling: Real-time sampling with configurable scan intervals (RTS).
Mechanical & Environmental:
Terminal block options:
1756-TBCH.
1756-TBS6H.
Mounting: Standard ControlLogix chassis slot.
Operating temperature: –20°C to +60°C.
Humidity: 5% to 95% non-condensing.
Certifications: UL, CE, CSA; suitable for Class I, Div 2 hazardous locations.