Overview
The Emerson 1C31233G04 is a compact, high-performance Sequence of Events (SOE) contact input module designed for the Emerson Ovation distributed control system. This EMOD assembly provides 16-channel sequence of events input with contact input capability, offering precise event tracking and data logging for industrial process control and monitoring applications.
Key Features
- 16 SOE input contact channels with input voltage range of 12 to 24 VDC
- Plug-in component with built-in fault tolerance and diagnostics
- 48V onboard wetting supply for reliable contact input sensing
- Enables accurate recording of sequential events essential for monitoring system performance, diagnostics, and troubleshooting with high-speed input processing to capture critical events with minimal latency
- I/O module that communicates on the I/O bus to the Ovation Controller and provides an interface between the controller and plant processes
Technical Specifications
- Input voltage: 12 to 24 VDC
- Number of channels: 16
- Onboard supply: 48V
- Module type: Compact EModule assembly
- Contact input compatible
- Tariff code: 85352100
- Origin: Made in Thailand
Typical Applications
The 1C31233G04 is widely deployed in:
- Power generation and utility control systems
- Oil and gas process automation
- Water and wastewater treatment facilities
- Manufacturing and batch process control
- Event logging and diagnostics for critical industrial processes
Compatibility & Replacements
Compatible With
- Emerson Ovation distributed control system (DCS)
- Ovation I/O bus architecture
- Ovation Controller platforms
- Ovation peripheral module cavities
Replaces / Drop-In Replacement For
The 1C31233G04 is the primary model for this compact 16-channel SOE contact input function. A related model, the 1C31234G01 provides contact input with onboard 48V wetting in 16-channel compact form, though application-specific requirements should be verified before substitution.
Works With
- Emerson Ovation engineering tools and configuration software
- Industrial fieldbus protocols for system integration
- Ovation PLC I/O module ecosystem
- Standard DCS network communication

