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Data Sheet: Honeywell FC-PDIO01 51454927-176
Safety Digital I/O Module – 16 Channel, SIL-3 Ready
Overview
FC-PDIO01 51454927-176 is a 16-channel safety digital I/O module within the Experion Safety System. It provides 8 DI + 8 DO in one slot, enabling fast, fail-safe signal exchange between field devices and the safety controller.
Verified Specifications
• 8 × 24 V DC inputs (2 mA each)
• 8 × 24 V DC outputs (0.5 A each, short-circuit protected)
• SIL 3 / IEC 61508, ATEX Zone 2 certified
• < 10 ms response time, –40 … +70 °C
• DIN-rail snap-in, 96 mm × 63 mm footprint
Fresh Use-Cases
• Offshore flare ESD – receives E-stop signals and drives eight 24 V solenoids.
• Battery-pack test rigs – loops back high-side switch status for cell isolation.
• Conveyor safety belts – monitors pull-cord switches and triggers alarm horns.
Quick Answers
Q1: Can the module handle 120 V AC inputs?
A1: No. Inputs are 24 V DC only; use FC-PDIO-120 for AC signals.
Q2: How do I reset an output after a short-circuit fault?
A2: Front-panel LED indicates the fault; clear it via the safety CPU diagnostic register.
Q3: Is loop-power provided?
A3: Yes, each input channel supplies 24 V DC loop power (2 mA max).
Q4: What CPUs are compatible?
A4: Any Honeywell FSC, SM-RIO, or Experion Safety Controller certified to SIL 3.
Ready-to-Ship
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Part No.
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Description
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FC-PDIO01 51454927-176
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Module (this SKU)
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FC-TERM-0001
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Bus terminator
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FC-RUSPSU-R
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Redundant 24 V DC supply
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FC-TDO-0824P
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8-ch DO FTA, 2 A
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FC-TDI-0824P
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8-ch DI FTA, 24 V DC
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30754661-022
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Spare 3 A fuse (5 × 20 mm)
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