Allen Bradley 1756-IF16 16-Ch 4-20mA Isolated Input - Industrial Process Control

Product Specification

1.Product Overview​

The ​Allen-Bradley 1756-IF16 ControlLogix® Analog Input Module​ provides high-precision signal acquisition for industrial process control. Designed for Rockwell's ControlLogix platform, this 16-channel module supports configurable voltage (±10V, 0-10V) and current (0-20mA, 4-20mA) inputs with ​24-bit delta-sigma ADC resolution. Featuring ​Channel-to-Channel Isolation​ (250V AC) and 1500V AC backplane isolation, it eliminates ground loops while withstanding EMI/RFI interference (EN 61000-6-2). Its robust aluminum housing operates at ​​-40°C to +70°C​ with NEMA 4X/IP67 protection (using 1756-TBNH terminals). Embedded diagnostics include open-wire detection, over-range alerts, and timestamped data for predictive maintenance integration in Studio 5000® environments.

2.​Critical Technical Specifications​

​Key performance benchmarks:

• ​Input Ranges: ±10V, 0-10V, 0-20mA, 4-20mA (software-selectable per channel)
• ​Resolution: 24-bit ADC with ±0.05% FSR accuracy @25°C
• ​Sample Rate: 1ms/channel (all channels scanned in 16ms)
• ​Isolation: 250V AC channel-to-channel, 1500V AC field-to-backplane
• ​Power Consumption: 850mA @ 5.1V DC backplane, 30mA max per sensor loop
• ​EMC Compliance: EN 61326-1 (50V/m RF immunity), EN 61000-4-5 Level 4 (4kV surge)
• ​Filtering: Programmable 50/60Hz noise rejection (>120dB attenuation)
• ​Calibration Drift: <±50ppm/°C over full temperature range
• ​Certifications: UL Class 1 Div 2, ATEX Zone 2, IECEx, RoHS III

3.​Targeted Applications​

​Precision process monitoring:

• ​Chemical Processing: Reactor temperature/pressure profiling via RTDs/thermocouples
• ​Pharmaceuticals: Bio-reactor pH monitoring with 21 CFR Part 11 audit trails
• ​Water Treatment: Turbidity/chlorine level sensing in SCADA-controlled plants
• ​Energy Production: Wind turbine vibration analysis using IEPE sensors
• ​Food & Beverage: Pasteurization temperature validation (EHEDG-compliant)
• ​Automotive Testing: Dyno cell strain-gauge measurement for SIL 2 safety systems
  Enables closed-loop control for critical processes requiring ≤0.1% signal integrity.

​4.Competitive Advantages​

​Operational differentiators:

• ​Diagnostic Depth: Channel-level wire-break detection (<1.5mA threshold)
• ​Zero-Drift Stability: Auto-calibration via onboard voltage reference
• ​Safety Integration: SIL 2 compliant (IEC 61508) with redundant diagnostics
• ​Configuration Flexibility: Mix voltage/current inputs within one module
• ​Space Efficiency: 16 channels in single-slot footprint (75mm × 87mm)
• ​Data Richness: IEEE 754 floating-point values with 1µs timestamps
• ​Lifecycle Economy: Hot-swappable terminals (1756-TBCH) reduce MTTR by 70%

5.​Functional Capabilities​

​Advanced process integration:

• ​Predictive Scaling: Auto-ranging detects sensor failures beyond 20.5mA/10.5V
• ​Alarm Engineering: Configurable high/low/wire-break thresholds per point
• ​Noise Immunity: Synchronous sampling eliminates 60Hz harmonic distortion
• ​CIP Safety™: Supports safety analog signals via Producer-Consumer tags
• ​Floating Ground Tolerance: ±30V common-mode voltage rejection
• ​Burnout Detection: 250µA current sourcing identifies 4-20mA sensor failures
• ​Data Logging: Stores 512 event buffers with millisecond-resolution SOE records

​

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
more about us , u can view our official web:http://www.zcsensors.com/follow us :

1)https://www.facebook.com/Sensors-and-transmitters-1883785301860678/?ref=aymt_homepage_panel&boosted_auto_open=BOOSTED_PAGELIKE

2)https://www.linkedin.com/in/z-csensorcenter/detail/recent-activity/shares/

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

Best Supply Brands As Following:1)Bently nevada.2)+GF+.3)Rosemount.4)ABB.5)Allen-Bradley.6)Foxobro.Good working environment, perfect team, sincere cooperation →→ Achieve u and our success !!!