Product Description
Product Information: Triconex Digital Input Module DI3301
Manufacturer:
- Triconex
Model/Part Number:
- DI3301 (Digital Input Module)
Description:
The DI3301 Digital Input Module features three isolated channels that independently process field data. Each channel places the processed data into an array and transmits this array to the associated Main Processor (MP) upon request. The MPs then vote on the data before passing it to the application.
This module includes complete diagnostics for each channel, continuously verifying the system's ability to detect state transitions. If a fault is detected on any channel, the Fault indicator turns on, activating a system alarm. However, the Fault indicator identifies a fault in the channel, not the entire module. The DI module guarantees proper operation in the presence of a single fault and may continue operating properly even with multiple faults.
The DI3301 module supports a hot-spare module and is mechanically keyed to prevent improper installation in a configured baseplate. It can be used with the following baseplates:
- Model 2301: Used in typical applications.
- DI External Termination Baseplate: Used with Solid State Relay Input External Termination Panel in high-voltage applications, or Model 9573-610 DI Hazardous Location External Termination Panel.
Digital Input Module Specifications:
| Feature | Specification |
|---|---|
| Points | 32, commoned |
| Nominal Input Voltage | 24 VDC |
| Operational Voltage Range | 15–30 VDC |
| Absolute Maximum Input Voltage | 33 VDC–0.6 VDC |
| Absolute Maximum Reverse Input Voltage | 0.6 VDC |
| Input Delay | <10 ms, On to Off or Off to On |
| Input Impedance | TC = 6.4 ms, -3dB @ 25Hz |
| Input Power | 0.2 W/point at 24 VDC, 0.5 W/point at 33 VDC |
| Input Threshold | 0–5 VDC = Off region, 6–14 VDC = Transition region, 15–30 VDC = On region |
| Diagnostic (Loss of View) | Force-to-Value Diagnostic (FVD), <2 ms/test |
| Maximum Input Toggle Rate | <20 sec |
| FVD Off State Glitch Duration | <2 ms |
| Magnitude | 36% test voltage |
| Output Impedance | 100 k |
| ADC Scan Time | <1 ms for all 32 points |
| Functional Earth to Protective Earth Isolation | 500 VDC, minimum |
| Functional Earth to Functional Earth (Logic Ground) Isolation | 800 VDC, minimum |
Key Features:
- Hot-Spare Module: Supports a backup module for fault tolerance.
- Isolated Channels: Provides three isolated sets of electronics to independently process data from field devices.
- Complete Diagnostics: Continuously monitors each channel and alerts with a Fault Indicator when a fault occurs.
- High Fault Tolerance: Operates correctly even with a single fault and can continue functioning with multiple faults.
- Mechanical Keying: Ensures correct installation by preventing improper module placement.
- Wide Operational Voltage Range: Supports a range of 15–30 VDC for flexible usage.
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