Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1C31232G01 |
| Manufacturer | Westinghouse / Emerson (Ovation Platform) |
| Product Type | Compact Digital Input Module (DI) |
| Input Channels | 16 single-ended |
| Input Voltage Range | 24/48 VDC |
| Input Type | Dry contact / Wet contact compatible |
| Isolation | Opto-isolated (channel to backplane) |
| Response Time | < 5 ms typical |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% (non-condensing) |
| Mounting | Ovation I/O chassis / DIN rail |
| Hot Swap | Supported |
| Communication | Ovation backplane high-speed I/O bus |
| Power Consumption | 5.0 W typical |
| Protection Rating | IP20 |
| Certifications | CE, UL, FM Class I Div 2 |
Main Features and Advantages
Dual-Voltage Flexibility for Migration Projects: The Westinghouse 1C31232G01 accepts both 24 VDC and 48 VDC field inputs within a single module, a capability specifically valuable for brownfield modernization. Legacy WDPF installations commonly employ 48 VDC for relay panels and protection circuits, while modern Ovation deployments standardize on 24 VDC. The Westinghouse 1C31232G01 accommodates both without requiring field device replacement, simplifying migration and reducing project costs .
Channel-to-Backplane Isolation: Optical isolation between field inputs and the Ovation backplane prevents ground loop currents and electrical noise from propagating into the control system. In power plants where multiple units share DC power sources, this isolation is essential for maintaining signal integrity and preventing spurious trips or false indications .
Hot-Swap Maintainability: The Westinghouse 1C31232G01 supports replacement during live operation, enabling maintenance without process interruption. For continuous-duty applications in power generation and refining, this capability minimizes downtime and allows planned module replacement during normal operation windows .
Integrated Diagnostics and Status Indication: Each of the 16 input channels includes LED status indication, providing immediate visual confirmation of field signal states. The module participates in Ovation‘s diagnostic routines, detecting internal faults and blown fuse conditions to support rapid troubleshooting and reduce mean time to repair .
Wide Environmental Tolerance: Operating from -20°C to +70°C, the Westinghouse 1C31232G01 performs reliably in the temperature extremes typical of power plant cabinets, including locations with limited climate control such as turbine halls, boiler areas, and remote I/O rooms .
