ICS TRIPLEX T3411F – The 40-ms SIL 3 Heart of Your Next Safety Loop
Xiamen-based PLC Autocontroller has spent 20 years turning “mission-critical” into “mission-accomplished”.
Today we spotlight the ICS TRIPLEX T3411F Digital Input FTA (Fault-Tolerant Assembly) – the panel-mounted, hot-swappable, triple-modular-redundant interface that converts 16 hazardous-area contacts into TÜV-certified SIL 3 logic in just 40 ms.
What the T3411F really does
• Receives 16 dry-contact or NAMUR signals
• Provides 3-way TMR (Triple Modular Redundant) voting on each channel
• Delivers open-wire, short-circuit and line-fault diagnostics to the T940 processor
• Allows online replacement without dropping the safety function (HFT = 1)
• Survives 2 kV surge and 15 g vibration – certified for offshore skids
Table 1 – T3411F at a glance
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Parameter
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Value / Specification
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Part number
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T3411F (ICS Triplex, Schneider Electric)
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Safety integrity level
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SIL 3 / Cat. 4 PL e
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Redundancy
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TMR, 2oo3 voted
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Input type
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Dry contact / NAMUR 2-wire
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Channels / module
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16
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Scan / voting time
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≤ 40 ms
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Field power
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24 V dc (20–30 V), 120 mA max per channel
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Isolation
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500 V dc channel-to-bus
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Diagnostics
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Open wire, short, overload, temperature
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Hot-swap
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Yes, automatic re-sync
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Operating temp.
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–40 … +70 °C
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Hazardous location
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Class I Div 2 / ATEX Zone 2
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Mechanical
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267 x 132 x 52 mm, 1.1 kg
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MTBF / SIL claim
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> 300 yr (MIL-HDBK-217F GB, 25 °C)
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Contact – speak to a human who knows T3411F part numbers by heart
Sales Manager: May
Email: ab@mooreplc.com | Phone/WhatsApp: +86-18106909650 | WeChat: dcsfcs
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