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Product Overview
The Ovation 1C31174G34 Analog Output Module is a high-performance output interface designed for Emerson’s Ovation Distributed Control System (DCS). It provides precise and reliable analog output signals used to control actuators, valves, dampers, and other final control elements in process automation systems.
Built for high-density applications, the module outputs current or voltage signals based on the control system’s commands, translating digital control instructions into analog actions in the field. It is engineered for industrial reliability and precision, with channel-to-channel isolation and advanced diagnostics that ensure safe and predictable operation in mission-critical environments.
The 1C31174G34 supports a wide range of industrial automation processes including power generation, water treatment, oil and gas, and manufacturing industries where real-time analog control is essential.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Analog Output Module |
| Model Number | 1C31174G34 |
| System Compatibility | Emerson Ovation DCS |
| Number of Channels | 8 Channels |
| Output Type | 4–20 mA (default), 0–10 VDC configurable |
| Signal Resolution | 12-bit to 16-bit resolution |
| Output Accuracy | ±0.1% of span |
| Isolation | Channel-to-channel and channel-to-ground isolation |
| Diagnostics | Loop status, open-circuit detection, self-test |
| Update Rate | ≤10 ms per channel |
| Load Resistance | 0 to 750 ohms (current mode) |
| Voltage Output Range | 0 to 10 VDC (optional configuration) |
| Power Supply | 24 VDC (from I/O rack) |
| Communication Interface | Ovation I/O backplane bus |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% to 95% non-condensing |
| Mounting Type | Standard rack-mounted in Ovation chassis |
| Dimensions (L × W × H) | 41 x 159 x 108 mm |
| Weight | 0.3 kg |
| Certifications | CE, UL, CSA, RoHS |
Applications
The 1C31174G34 Analog Output Module plays a central role in closed-loop control strategies where analog signal control is required for actuation and manipulation of processes. Common applications include:
-
Power Generation Plants
Controls turbine governors, damper actuators, and feedwater valve positions using real-time analog signals. -
Chemical & Petrochemical Plants
Manages valves, pumps, and temperature regulators for batch and continuous processes. -
Water & Wastewater Treatment
Adjusts chemical dosing, valve positioning, and pump speeds to maintain flow and treatment targets. -
Oil & Gas Facilities
Provides analog control in upstream and downstream operations including flow regulation and process safety systems. -
Pharmaceutical Manufacturing
Delivers precise analog outputs to maintain environmental conditions and control critical parameters. -
Food & Beverage Production
Regulates pressure, temperature, and ingredient flows in sanitary process environments.
Advantages
-
High Accuracy Output
Provides ±0.1% output accuracy, supporting precision control in sensitive process environments. -
Multiple Signal Types
Configurable per channel for current (4–20 mA) or voltage (0–10 VDC) output, offering application flexibility. -
Advanced Diagnostics
Built-in fault detection, loop monitoring, and open circuit alerts help reduce troubleshooting time. -
Fast Update Rates
Low latency output response (≤10 ms) ensures smooth process control without lag. -
Channel Isolation
Electrical isolation between channels minimizes cross-talk and protects against transient interference. -
Compact Form Factor
High channel density per module saves cabinet space and reduces installation costs. -
Direct Integration
Seamless communication over Ovation backplane makes it easy to configure and deploy within the Emerson ecosystem. -
Rugged and Reliable
Suitable for continuous operation in extreme industrial environments with wide temperature and humidity tolerances.
FAQ (Frequently Asked Questions)
1. What type of outputs does the 1C31174G34 module provide?
It supports both 4–20 mA current output and 0–10 VDC voltage output, configurable per channel.
2. How many output channels are available on the module?
The module offers 8 analog output channels.
3. Can each output channel be configured independently?
Yes, each channel can be configured individually for either current or voltage output.
4. What’s the maximum load resistance supported in current output mode?
The module supports up to 750 ohms of load resistance.
5. Is the module compatible with legacy Ovation systems?
Yes, it integrates seamlessly with both current and legacy Ovation DCS platforms.
6. How accurate are the output signals?
The module provides output accuracy within ±0.1% of the full signal span.
7. Does it support hot-swap capability?
Yes, it can be hot-swapped when installed in a supported Ovation rack system.
8. How is fault detection handled?
Each channel has built-in diagnostics to detect open loops and report status via system alerts.
9. Can this module be used in outdoor applications?
Yes, provided it is enclosed in an environmental-rated cabinet or panel that meets outdoor requirements.
10. What is the weight and size of the module?
It weighs 0.3 kg and measures 41 x 159 x 108 mm.
Related Models (Same Series or Function)
| Model | Description | Type | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1C31174G01 | Basic Analog Output Module | AO Module | 8 | 171 × 38 × 216 | 0.95 |
| 1C31174G33 | Loop Interface Module (AI/AO Support) | Loop Interface | 8 | 171 × 38 × 216 | 0.95 |
| 1C31169G02 | Isolated Analog Output, Enhanced Diagnostics | AO Module | 8 | 171 × 38 × 216 | 0.98 |
| 1C31174G35 | Dual-Mode Analog Output (Current/Voltage) | AO Module | 8 | 171 × 38 × 216 | 0.97 |
| 1C31150G01 | Analog Input Module | AI Module | 16 | 171 × 38 × 216 | 0.90 |
| 1C31166G01 | Digital Output Module (Relay Type) | DO Module | 16 | 171 × 38 × 216 | 0.85 |
Popular Emerson Ovation Modules
| Model | Description | Type | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1C31125G02 | Digital Input Module (Dry Contact) | DI Module | 16 | 171 × 38 × 216 | 0.88 |
| 1C31129G03 | RTD Temperature Input Module | Temperature Input | 8 | 171 × 38 × 216 | 0.93 |
| 1C31166G02 | Digital Output Module (Solid State) | DO Module | 16 | 171 × 38 × 216 | 0.87 |
| 1C31227G01 | Frequency/Pulse Input Module | Frequency Module | 8 | 171 × 38 × 216 | 0.95 |
| 1C31203G01 | Power Supply Interface Module | Power Interface | – | 171 × 38 × 216 | 1.05 |
| 1C31194G01 | Communication Interface Module | Comm Interface | – | 171 × 38 × 216 | 0.92 |
