Allen-Bradley ControlLogix 1756-IF16H 16-Point HART Analog Input Module

Description

• 1756-IF16H​ → 16 differential analog inputs, HART 5/6/7 compliant​ (HART 1.2 physical layer), ±0.1% full-scale accuracy​ (typical at 25°C), selectable ranges per channel (0–20 mA, 4–20 mA, ±20 mA, ±10V, 0–10V, 1–5V etc.), channel-to-channel isolation​ (not just bank iso — each channel independently isolated 250V AC RMS to chassis/bus), Data rates 1.2/2.4 kbps (FSK)​ per HART spec. Configured via Studio 5000 / RSLogix 5000​ — HART data accessed via Add-On Instructions (AOI) or direct GSV/SSV / message instructions; integrates with Rockwell FactoryTalk AssetCentre + AMS Device Manager​ for device health monitoring.
• The other items in your list are ControlLogix chassis companions​ for building a complete redundant/process-grade rack:
  • 1756-LSC8XIB8I​ → GuardLogix 5570 SIL3 Safety CPU​ — 8× DI (standard) + 8× IB (safety-rated DI) integrated on CPU — SIL3 / PLe Cat.4 — used when process + safety in one rack (LSC = Logix Safety Compact? Actually 1756-LSC8XIB8I is the 1756 GuardLogix 5570 with integrated 8 DI + 8 Safety DI​ — the “LSC” prefix = Logix Safety CPU for 1756 chassis; pairs with 1756-RM2 for redundancy if safety-redundant needed).
  • 1756-N2​ → Chassis filler plate (blank cover)​ for unused slots — keeps dust/debris out, maintains EMI shielding.
  • 1756-OF8IHK​ → 8-Point HART Analog Output Module​ (K = conformal coat) — 8× differential AO, HART 5/6/7 on each channel, 4–20 mA / ±10V / 0–10V selectable — companion to IF16H for HART loop closure.
  • 1756-PAR2​ → Chassis Power Adapter / Right-side power filler​ (PAR = Power Adapter Right — fills the right-side power slot when using redundant PSU like 1756-PBR2XT).
  • 1756-PBR2XT​ → 1756 Redundant Power Supply, XT grade (extreme temp -20…+70°C)​ — 1756-PBR2 (redundant) + XT = extended temp / conformal coat — pairs with 1756-PAR2 on right side of chassis for 1+1 redundant PSU.
  • 1756-RM2 / 1756-RM2K​ → ControlLogix Redundancy Module (Gen2)​ — sits in slot 0 (leftmost) of each redundant chassis, syncs CPU/memory/I/O ownership between primary & backup chassis; RM2K = conformal coated.
  • 1756-RMC10​ → Redundancy Module Fiber Optic Cable, 10 m​ — connects RM2 in Chassis A ↔ RM2 in Chassis B for high-speed sync (optical isolation — immune to EMI).

Key Features (1756-IF16H)

• Channels: 16 differential analog inputs — HART 5/6/7 on every channel (FSK 1.2/2.4 kbps)
• Signal Types: 4–20 mA, 0–20 mA, ±20 mA, 0–10V, 1–5V, ±10V (per-channel software select)
• Accuracy: ±0.1% full scale (typical @ 25°C), ±0.3% over temp
• Isolation: Channel-to-channel and​ channel-to-backplane 250V AC RMS (enhanced iso vs. non-H non-iso IF16)
• Resolution: 16-bit ADC per channel
• Update Time: Programmable (e.g., 8 ms / 16 ms / 32 ms per module — all 16 ch together)
• HART Integration: Works with Rockwell HART AOI library​ + FactoryTalk AssetCentre / AMS Device Manager​ — reads device status, cal dates, diag vars without breaking 4–20 mA loop
• Country of Origin: USA (Rockwell Automation / Allen-Bradley)

Model & Companion Reference (Your List Decoded)

⚠️ Critical Notes:

1. IF16H ≠ IF16 (non-HART): The non-H IF16 also has 16 diff inputs but no HART overlay​ — if you need smart device comms (Rosemount/Endress+E+H/E+H/Emerson HART tx) you must buy IF16H​ (or IF8H — 8-pt version). IF16H costs more but saves a HART multiplexer in small–mid plants.
2. HART Data Path: 1756-IF16H passes HART FSK on the analog pair — the HART digital payload is extracted by the module and placed into controller tags via Rockwell HART AI AOI (v3.x+)​ — then you can push to AMS Device Manager​ via FactoryTalk AssetCentre​ or read directly in Studio 5000 HART Extended Properties Page. No extra HART modem needed per channel (unlike 4–20 mA only modules).
3. Redundancy Architecture: For a redundant ControlLogix: Chassis A & B each get 1756-RM2 (slot 0) + 1756-PBR2XT (left PSU) + 1756-PAR2 (right PSU filler — or second PBR2XT for 2+2)​ + same CPU + same I/O (I/O not redundant by default — use 1788-EN2F/1788-CN2F + remote I/O rack for I/O redundancy, or use redundant IN stations). RM2 sync via 1756-RMCx​ (10m / 30m / 100m options — RMC10=10m, RMC30=30m, RMC100=100m).
4. LSC8XIB8I = GuardLogix 5570 (1756 chassis): Don’t confuse with 1769-L7x (CompactLogix) or 5069-L3x (CompactLogix 5380). 1756-LSC8XIB8I is the 1756-form-factor GuardLogix​ — SIL3, integrated 8 std DI + 8 safety DI — if your application is process (IF16H) + machine safety in one rack, this CPU makes sense; if pure process no safety, use 1756-L7x (e.g., 1756-L73S — but L73S is also safety; for non-safety process use 1756-L71/L72/L73).
5. Conformal Coat Suffixes: “K” = conformal coating​ (IEC 60721-3-3 3C2 / 3S2 — humid/salty/corrosive) — OF8IHK, RM2K. “XT” = extended temp -20…+70°C + conformal. For normal cabinet, non-K/XT is fine; for offshore/cement/mining — go K/XT.

Technical Specifications (1756-IF16H — 16-pt HART Analog Input, Differential, Isolated)

Warranty & After-Sales

• Factory new units: 12 months warranty
• Refurbished units: 3-6 months warranty (bench test: inject 4–20mA + HART FSK simulate via HART modem / 475/375 handheld → verify AI tag + HART PV read in Studio 5000)
• Technical support for:
  • ControlLogix rack composition (1756-Ax chassis size → PSU (1756-PA72/PB72/PBR2XT) → RM2 slot0 → CPU → IF16H/OF8IHK → N2 fillers)
  • Redundancy wiring (RM2 ↔ RM2 via RMC10/RMC30 — fiber length choice; PAR2 + PBR2XT right-side fit)
  • Studio 5000 HART AOI import (download Rockwell HART AI/AO AOI → add to controller → map IF16H tags → HART PV/SV/TV units appear as controller tags)
  • AMS / FactoryTalk AssetCentre integration (ControlLogix Ethernet → AMS — HART device DD files loaded in AMS)
  • LSC8XIB8I (GuardLogix 5570) safety task setup if that CPU is your target
  • Conformal coat / XT selection advice (offshore/cement/mining → HK/XT; office-panel → standard)
• Optional: 1756 chassis (1756-A4/A7/A10/A13/A17), PSU (1756-PA72/PB72/PBR2XT), RM2/RM2K, RMC10/RMC30, 1756-N2 fillers, 1756-PAR2, 1756-OF8IHK, Studio 5000 license

Delivery Time

• Standard delivery: 3-5 working days (stock NOS)
• Express shipping available upon request

Why Choose Our Store

• Genuine Allen-Bradley ControlLogix modules — not gray-market (HART PHY calibration & backplane ISO critical)
• Global supply network with competitive pricing on 1756 process/redundant components
• Expertise in ControlLogix HART process racks (IF16H + OF8IHK + RM2 + LSC safety CPU selection)
• Comprehensive technical documentation (1756 chassis slot map, RM2 fiber hookup diagram, HART AOI mapping screenshot, Studio 5000 HART page walkthrough)
• Responsive customer service and support

Applications

• Process Plants (Oil & Gas / Chemical / Pharma): 4–20mA+HART transmitters (flow/pressure/temp/level — Emerson Rosemount, Endress+Hauser, Yokogawa) → IF16H → AMS Device Manager for valve cal dates, device health.
• Redundant Process Skids: Chassis A+B with RM2+RMC10, PBR2XT dual PSU, LSC8XIB8I GuardLogix (SIL3) — high-avail process + safety.
• Retrofit Legacy PLC-5 / SLC 5/04: Migrate analog intensive process loops to ControlLogix + IF16H — keep existing HART smart tx, gain AMS integration.
• Water/Wastewater Treatment: Remote lift stations → ControlLogix rack with IF16H reading pump status (4–20mA + HART diag) → SCADA.
• Hybrid Safety+Process: LSC8XIB8I + IF16H in same 1756 rack — SIL3 machine safety (integrated 8 safety DI) + process analog in one chassis.