Product Short Description
Product Introduction
Mixed-signal multifunction input module for DeltaV DCS systems integrating digital discrete input and analog signal acquisition channels within single rack slot. Simultaneously collects binary contact signals and analog 4–20 mA process measurements for combined discrete and analog field device monitoring to reduce total rack slot count.
Description
Technical & Electrical Specifications
- Backplane Operating Supply: 24 V DC rack power input
- Local Bus Power Draw: 12 V DC @ 300 mA
- Dual Signal Channel Types: Discrete digital input + analog 4–20 mA input integrated
- Field Circuit Voltage Rating: 24 V DC nominal field sensor power
- HART Communication Support: Analog channel HART 5/7 transparent pass-through
Mechanical & Material Specifications
- Mounting Form Factor: DeltaV S-Series rack plug-in slot module
- Net Unit Weight: Approx. 0.2 kg
- Housing Material: Black flame-retardant industrial ABS plastic
Environmental Parameters
- Operating Ambient Temperature: -20 °C ~ +60 °C
Function Features
- Hybrid mixed analog/digital channel architecture consolidates two separate I/O card functions into single rack slot
- Independent fault diagnostics for discrete input wire breakage and analog channel signal out-of-range conditions
- Hot-swap compatible for online rack maintenance without process system shutdown
- Native DeltaV backplane high-speed deterministic communication bus interface
- Analog channel bidirectional HART communication for SMART transmitter remote diagnostics
Working Principle
Dual isolated signal processing circuits operate in parallel within single module hardware. Discrete input circuit samples binary contact closure signals from field limit switches, solenoid feedback and proximity sensors. Analog input channel circuit converts 4–20 mA transmitter current signals to digital measurement values with integrated HART demodulation. Combined digital/analog measurement data packaged and transmitted via DeltaV rack backplane bus to system main controller for integrated process monitoring logic execution.
Advantage Highlights
- Hybrid mixed I/O design reduces total rack slot requirement for sites with balanced analog and discrete field devices
- Single module hardware reduces spare parts inventory volume for site maintenance stock
- Unified terminal base assembly for both analog and discrete field wiring simplifies cabinet cable routing
- Hot-swap capability eliminates full rack shutdown during module fault replacement
Applicable Industries
Food & beverage batch process control, pulp & paper mill distributed automation, small-scale chemical manufacturing, industrial HVAC central plant control
Installation Requirements
- Install within standard Emerson DeltaV S-Series I/O rack backplane dedicated hybrid I/O slots
- Fit matching dedicated mixed-signal terminal base unit prior to module insertion
- Separate low-voltage field instrument wiring and high-voltage power wiring via cabinet cable partitions
Usage Precautions
- Do not exceed rated 24 V DC field circuit voltage for both analog and discrete input channels
- Disconnect all field terminal wiring before hot-swap module replacement operation
- Maintain rack chassis internal operating temperature below maximum 60 °C rating
- Do not substitute with non-original third-party mixed I/O module hardware
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