Function: The Digital Input 24VDC module accepts 24VDC signals as discrete inputs.
Notable Features:
- Extensive internal diagnostics for data integrity
- Open wire detection
- Optional redundancy
- Internal or external field power selection
- On-board excitation power (no need for marshalling power)
- Supplies Non-incendive field power
- Direct / Reverse Input Indication
- Galvanic isolation
Specifications:
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Input Channels: 32
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Galvanic Isolation: 1500 VAC RMS or ±1500 VDC (any input terminal voltage referenced to common)
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Isolation Technique: Optical (in IOM)
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DI Power Voltage Range: 18 to 30 VDC
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ON Sense Voltage/Current: 13 VDC (minimum) or 3 mA (minimum)
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OFF Sense Voltage/Current: 5 VDC (maximum) or 1.2 mA (maximum)
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Input Impedance: 4.2 KΩ
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Absolute Delay Across Input Filter and Isolation: 5 ms ± 20%
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Field Resistance for Guaranteed ON Condition: 300 Ω maximum @ 15 VDC
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Field Resistance for Guaranteed OFF Condition: 30 KΩ minimum @ 30 VDC
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