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The OVATION 1C31129G04 is a high-precision analog output module designed for industrial process automation systems. It converts digital control signals from a distributed control system (DCS) into 0–20 mA current signals, which are commonly used to drive actuators, control valves, and other field devices. This module is engineered for reliability, stability, and precision, suitable for harsh industrial environments.
The 1C31129G04 features multiple analog output channels with 16-bit resolution, providing highly accurate signal conversion. Unlike voltage output modules, it delivers current outputs, making it suitable for long-distance transmission with minimal signal loss. The module is modular and plugs directly into the backplane of the Ovation I/O rack, allowing easy integration, maintenance, and expansion. LED indicators per channel provide operational status and diagnostic feedback, ensuring smooth system operation.
| Parameter | Specification |
|---|---|
| Model | OVATION 1C31129G04 |
| Function | 0–20 mA Analog Output Module |
| Brand | Emerson / Ovation |
| Series | 1C311xx I/O Series |
| Output Channels | 8 Analog Channels |
| Resolution | 16 bit |
| Output Range | 0–20 mA |
| Accuracy | ±0.05 % |
| Update Rate | 500 Hz |
| Communication Interface | Backplane Bus |
| Protection Rating | IP20 |
| Operating Temperature | -40 °C to +70 °C |
| Dimensions (L×W×H) | 130 mm × 100 mm × 70 mm |
| Weight (approx.) | 0.35 kg – 0.50 kg |
| LED Indicators | Yes, per channel |
| Diagnostics | Channel fault detection |
| Warranty | 1 year typical |
The OVATION 1C31129G04 is commonly used in industrial sectors where accurate analog control is critical:
Power plants: thermal, nuclear, and combined-cycle
Chemical and petrochemical processing
Oil refining and oil & gas production
Metallurgical process automation
Manufacturing systems requiring precise current-controlled actuators
Large-scale distributed control system installations
It is ideal for applications that require long-distance analog signal transmission and robust environmental operation.
High Reliability: Designed for continuous operation in industrial conditions with high temperature tolerance and environmental robustness.
Precision Control: 16-bit resolution ensures high accuracy in current output control loops.
Long-Distance Compatibility: 0–20 mA output allows signals to be transmitted over long distances without significant loss.
Diagnostic Feedback: LED indicators provide real-time monitoring for easier maintenance and troubleshooting.
Modularity and Scalability: Fully compatible with the Ovation I/O backplane; allows for flexible system expansion and module replacement.
Environmental Resistance: Resistant to vibration, shock, humidity, and temperature variations common in industrial environments.
Brand: Emerson (Ovation automation systems)
Series: Ovation 1C311xx I/O module family, which includes analog input/output, digital input/output, and loop interface modules.
| Model | Function | Typical Parameters |
|---|---|---|
| 1C31129G03 | Analog Output Module (Voltage ±10 V) | 16 bit, 8 channels, LED diagnostics |
| 1C31129G02 | Analog Output Module (Voltage 0–10 V) | 16 bit, 8 channels |
| 1C31132G01 | Multi-channel Analog Output | 16 bit, 8–16 channels |
| 1C31142G01 | Digital Input Module | 16 digital inputs |
| 1C31174G03 | Loop Interface Module | 0–20 mA loop input/output |
| Model | Typical Function | Notes |
|---|---|---|
| 1C31161G02 | RTD Input Module | Temperature sensor interface |
| 1C31166G01 | Link Controller (RS-232/RS-485) | Communication interface |
| 1C31169G02 | RS-485 Link Controller | Field communication |
| 1C31157G01 | Sequence of Events Module | Event timing & logging |
| 1C31174G01 | Mixed AI/AO Loop Interface | Combined analog input/output |
Q1: What is the OVATION 1C31129G04 used for?
A1: It is a 0–20 mA analog output module that converts digital signals into current outputs to control field devices.
Q2: How many channels does it have?
A2: It has 8 analog output channels.
Q3: What is the output range of this module?
A3: 0–20 mA, suitable for long-distance transmission.
Q4: Does it include diagnostic features?
A4: Yes, each channel has status monitoring for fault detection.
Q5: What type of interface does it use?
A5: It communicates via the backplane bus of the Ovation I/O rack.
Q6: What are the operating temperature limits?
A6: -40 °C to +70 °C.
Q7: How much does it weigh?
A7: Approximately 0.35 kg to 0.50 kg.
Q8: Can it be used in modular systems?
A8: Yes, it is fully compatible with Ovation modular I/O systems for easy replacement and expansion.
Q9: Which industries use this module most frequently?
A9: Power generation, chemical, petrochemical, refining, metallurgical, and industrial manufacturing.
Q10: What advantages does this module offer over standard analog outputs?
A10: High resolution, long-distance current output, diagnostic feedback, environmental resilience, and modular integration with DCS.