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Product Introduction
The Ovation 1C31234G01 is a high-performance 16-channel compact digital input module designed by Emerson Process Management for seamless integration into the Ovation Distributed Control System (DCS). Tailored for environments that require accurate, high-speed acquisition of binary signals, this module is engineered for critical applications across power generation, oil and gas, water treatment, and industrial manufacturing.
Its compact form factor makes it ideal for space-constrained control cabinets, while still delivering full Ovation DCS compatibility and robust electrical isolation. Each channel is capable of receiving 24 VDC digital inputs from field devices such as switches, limit sensors, relay contacts, and safety interlocks. The 1C31234G01 ensures signal integrity, rapid status updates, and efficient channel diagnostics, enhancing operational responsiveness and reducing system downtime.
Whether used in safety circuits, plant interlocks, or remote monitoring panels, this module provides a reliable, flexible solution for discrete signal acquisition in demanding control applications.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | 1C31234G01 |
| Manufacturer | Emerson Process Management |
| Product Type | Digital Input Module (Compact) |
| Number of Channels | 16 discrete input channels |
| Input Signal Type | 24 VDC (Nominal), Positive Logic |
| Input Voltage Range | 18 VDC – 30 VDC |
| Logic Threshold (ON) | ≥ 15 VDC |
| Logic Threshold (OFF) | ≤ 5 VDC |
| Input Response Time | < 5 milliseconds |
| Isolation Voltage | 1500 V RMS channel-to-backplane |
| Input Impedance | >10 kΩ |
| Channel Status Indicators | Individual LEDs for each input channel |
| Diagnostics | Open circuit detection, signal loss indication |
| Power Consumption | < 3.5 W |
| Mounting Style | DIN-rail or chassis rack |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% – 95% (non-condensing) |
| Certifications | CE, UL, CSA certified |
| Dimensions (W x H x D) | 40 × 240 × 200 mm |
| Weight | 0.912 kg |
Applications
The 1C31234G01 module is widely deployed in industries requiring reliable and timely monitoring of digital signals. Its compactness and robust design make it particularly well-suited for applications such as:
-
Power Generation Plants
For detecting circuit breaker status, relay actuation, turbine safety interlocks, and shutdown signals. -
Oil & Gas Facilities
Used to monitor emergency stop buttons, pressure switch statuses, and other critical discrete signals. -
Water & Wastewater Treatment
Monitoring pump start/stop status, gate position feedback, and alarm triggers in process control. -
Industrial Automation & Robotics
Detects input from limit switches, machine guards, and robot safety fences. -
Chemical & Petrochemical Plants
Processes digital inputs from hazardous area switches, tank level alarms, and flow confirmations. -
Building Management Systems (BMS)
Used for detecting inputs from HVAC sensors, access control systems, and fire alarms.
Product Advantages
-
Compact Design
Occupies less cabinet space while maintaining high input density, ideal for retrofit and compact system builds. -
High Signal Reliability
Each input channel offers electrical isolation and signal conditioning to ensure reliable detection. -
Fast Response Time
Sub-5 ms input recognition ensures timely system response in dynamic control environments. -
LED Diagnostics
Channel-wise LEDs provide real-time feedback for fast status checks and maintenance. -
Noise Resistance
Suitable for environments with high electromagnetic interference, ensuring consistent performance. -
Flexible Installation
Supports both rack-mount and DIN-rail options for diverse panel layouts. -
Integrated with Ovation DCS
Fully compatible with Emerson’s Ovation platform, enabling seamless communication and diagnostics. -
Long Lifecycle
Built with high-quality components, offering extended service life with minimal maintenance needs.
Frequently Asked Questions (FAQ)
1. How many digital inputs does the 1C31234G01 module support?
The module supports 16 discrete digital input channels designed for 24 VDC signals.
2. What voltage range is acceptable for input signals?
The acceptable input voltage range is 18 to 30 VDC, with a nominal value of 24 VDC.
3. What types of devices can be connected to this module?
Devices such as limit switches, push buttons, relay contacts, and digital proximity sensors can be connected.
4. Does the module offer electrical isolation for each channel?
Yes, it provides 1500 V RMS isolation between the input channels and the backplane, ensuring safety and reliability.
5. What kind of input logic does it use?
It operates on positive logic: a voltage above 15 VDC registers as ON, and below 5 VDC as OFF.
6. Is the module compatible with older Ovation systems?
Yes, it is fully compatible with legacy Ovation DCS platforms and can be integrated without additional conversion tools.
7. Can the module be hot-swapped during operation?
Yes, it supports hot-swapping when installed in the proper Ovation rack, minimizing downtime during maintenance.
8. What built-in diagnostic features are included?
It includes open-circuit detection and LED status indicators for each input channel to assist with quick troubleshooting.
9. How is field wiring managed for this module?
The module supports removable terminal blocks or field cabling assemblies, depending on the backplane configuration.
10. Is this module suitable for safety-critical input monitoring?
Yes, when used within a properly designed Ovation safety control architecture, it can be used for safety interlocks and critical signal acquisition.
Related Models from the Same Series
| Model | Description | Function | Channels | Notes |
|---|---|---|---|---|
| 1C31232G02 | Differential Digital Input Module | Digital Input | 32 | Enhanced noise immunity |
| 1C31238G01 | Digital Output Module | Digital Output | 16 | For switching actuators or lights |
| 1C31233G02 | Digital I/O Module | Mixed Input/Output | 32 | Flexible configuration |
| 1C31233G03 | Digital Input Module | Digital Input | 32 | Standard compact DI version |
| 1C31227G02 | Analog Input Module | Analog Input | 16 | For sensors with analog signals |
| 1C31219G01 | Analog Output Module | Analog Output | 8 | For controlling analog devices |
Popular Emerson Ovation Models
| Model | Description | Function | System Compatibility |
|---|---|---|---|
| 1C31110G02 | Thermocouple Input Module | Temperature Input | Ovation DCS |
| 1C31116G01 | CPU Controller Module | Central Logic Processor | Ovation DCS |
| 1C31194G01 | Communication Module | Serial/Ethernet Comm | Ovation DCS |
| 5X00106G01 | Power Supply Module | Power for backplane | Ovation DCS |
| 1C31223G01 | Low-Level Analog Input Module | mV / Thermocouple Input | Ovation DCS |
| 1C31234G01 | Compact Digital Input Module | 16-Channel DI | Ovation DCS |
