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Product Introduction
The Ovation 1C31233G03 Input Module is a high-reliability digital input module developed by Emerson Process Management for the Ovation Distributed Control System (DCS). This module is specifically designed to monitor digital (discrete) signals from field devices in real-time, ensuring timely and accurate input acquisition for industrial automation processes.
This model provides enhanced signal integrity, quick response times, and robust isolation, making it suitable for harsh and noisy industrial environments. With high-density input channels, diagnostic capabilities, and seamless integration with the Ovation platform, the 1C31233G03 stands out as a cost-effective and reliable solution for large-scale control applications in power, water treatment, oil & gas, and other process industries.
Its design ensures minimal downtime, easy maintenance, and system-wide compatibility—making it an essential component in mission-critical process control environments.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | 1C31233G03 |
| Manufacturer | Emerson Process Management |
| Product Type | Digital Input Module |
| Input Type | 24 VDC Discrete Digital Input |
| Number of Channels | 32 Independent Channels |
| Input Voltage Range | 18–30 VDC (Nominal 24 VDC) |
| Logic Level (ON/OFF) | ON ≥ 15 VDC, OFF ≤ 5 VDC |
| Response Time | < 5 ms |
| Input Impedance | >10 kΩ |
| Isolation Voltage | 1500 V RMS channel-to-backplane |
| Diagnostics | Open circuit detection, status indication via LEDs |
| LED Indicators | Individual LEDs for each input channel |
| Power Consumption | < 4.5 W |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5%–95% non-condensing |
| Mounting | DIN-rail or backplane rack mounting |
| Dimensions (W x H x D) | 50 × 240 × 200 mm |
| Weight | 0.91 kg |
| Certifications | CE, UL, CSA certified |
Applications
The 1C31233G03 Input Module is designed for a variety of industries requiring digital signal monitoring in mission-critical automation and control systems. Its high-speed performance and electrical noise resistance make it ideal for applications such as:
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Power Generation
For capturing binary signals from breakers, turbine sensors, emergency shutdowns, and safety interlocks. -
Oil & Gas Processing
Monitoring wellhead sensors, safety valves, limit switches, and remote I/O signal feedback. -
Water and Wastewater Plants
Supervising pump status, level switches, valve positions, and control room signals. -
Manufacturing Automation
Tracking machine interlocks, conveyor switches, proximity sensors, and fault relays. -
Chemical and Petrochemical
Detecting alarms, digital process triggers, and motor starter status in hazardous areas. -
Building and Facility Automation
Monitoring fire alarms, door contacts, and emergency system inputs in building management systems.
Product Advantages
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High Channel Density: Offers 32 digital input channels, maximizing input capacity within a single compact module.
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Noise Immunity: Designed to operate reliably in electrically noisy environments with strong input signal conditioning.
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Fast Response Time: <5 ms latency ensures real-time system responsiveness and fast control action.
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Simplified Diagnostics: Built-in LEDs and fault detection reduce downtime and facilitate rapid troubleshooting.
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Compact & Rugged Design: Saves cabinet space while withstanding extreme industrial conditions.
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Standardized Ovation Integration: Plug-and-play compatibility with Ovation DCS reduces engineering effort and risk.
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Extended Environmental Range: Operates reliably across wide temperature and humidity ranges.
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Low Power Consumption: Energy-efficient design minimizes heat generation and power load on control systems.
Frequently Asked Questions (FAQ)
1. What is the input voltage specification for the 1C31233G03 module?
The module supports a 24 VDC input signal, with an operational range of 18–30 VDC.
2. How many digital input channels does this module offer?
It provides 32 independent discrete input channels.
3. Is each input channel isolated?
Channels are isolated from the backplane with 1500 V RMS isolation, grouped per internal configuration.
4. What is the typical application for this module?
It’s widely used for monitoring digital signals in industrial DCS applications—especially in power, water, and oil & gas sectors.
5. Does the module include diagnostics?
Yes, it includes open circuit detection and LED status indicators for each channel.
6. Is it compatible with legacy Ovation systems?
Yes, it is backward-compatible and fully supported in standard Ovation backplanes.
7. Can this module be used in high-humidity or outdoor environments?
It can operate in up to 95% non-condensing humidity but should be enclosed in a suitable cabinet for outdoor use.
8. How is the wiring handled for inputs?
Wiring is typically done through removable terminal blocks or standardized field wiring assemblies.
9. What’s the power consumption of the module?
Less than 4.5 watts under standard conditions.
10. Is hot-swapping supported?
Yes, when installed in a live Ovation chassis, it can be replaced without shutting down the system.
Related Models from the Same Series
| Model | Description | Function | Channels | Notes |
|---|---|---|---|---|
| 1C31233G02 | Digital I/O Module | Input/Output | 32 | Mixed I/O configuration |
| 1C31232G02 | Differential Digital Input Module | Input | 32 | Differential input with noise immunity |
| 1C31238G01 | Digital Output Module | Output | 16 | For controlling digital devices |
| 1C31234G01 | Digital Input Module | Input | 32 | High-speed standard input module |
| 1C31227G02 | Analog Input Module | Input | 16 | For analog sensor inputs |
| 1C31219G01 | Analog Output Module | Output | 8 | For actuator and analog control |
Popular Emerson Ovation Models
| Model | Description | Function | System Compatibility |
|---|---|---|---|
| 1C31110G02 | Thermocouple Input Module | Temperature Input | Ovation DCS |
| 1C31116G01 | CPU Controller Module | Main Logic Processor | Ovation DCS |
| 1C31194G01 | Network Communication Module | Ethernet / Serial Comms | Ovation DCS |
| 5X00106G01 | Power Supply Module | DCS Power Source | Ovation DCS |
| 1C31223G01 | Low-Level Analog Input Module | Thermocouple / mV Input | Ovation DCS |
| 1C31234G01 | High-Speed Digital Input Module | Digital Input | Ovation DCS |
