Description
WESTINGHOUSE 1C31234G01 is a high-density 16-channel digital input (DI) module engineered for the Westinghouse Ovation Distributed Control System (DCS), optimized for reliable discrete signal acquisition from field devices like limit switches, pushbuttons, and safety interlocks in power generation, oil & gas, and heavy manufacturing industries. WESTINGHOUSE 1C31234G01 supports 48V DC configurable sink/source input signals, delivering robust noise immunity via 500V AC channel-to-backplane isolation for stable operation in harsh, high-EMI industrial environments. WESTINGHOUSE 1C31234G01 features a hot-swappable E-Mod design, enabling module replacement without chassis power shutdown to maximize system uptime, while front-panel LED indicators provide real-time status visibility for each channel. WESTINGHOUSE 1C31234G01 integrates seamlessly with Ovation controllers and backplanes, streamlining system expansion and commissioning workflows for both new installations and legacy DCS upgrades. Whether monitoring valve positions in a refinery or safety interlocks in a power plant, WESTINGHOUSE 1C31234G01 delivers high-performance, cost-effective discrete signal control for mission-critical processes.
Technical Parameters WESTINGHOUSE 1C31234G01
| Parameter Item | Parameter Value |
|---|---|
| Product Model | WESTINGHOUSE 1C31234G01 |
| Module Type | Ovation 16-Channel Digital Input E-Module |
| Input Channels | 16 isolated discrete input channels |
| Rated Input Voltage | 48V DC (sink/source configurable) |
| Input Current | 7mA (typical) |
| Response Time | ≤10ms (On/Off transitions) |
| Isolation Rating | 500V AC (channel-to-channel; channel-to-backplane) |
| Communication Interface | Ovation DCS backplane (compatible with OCR 400/500 processors) |
| Power Supply | +5V DC (chassis-fed, 0.8A max); 48V DC (field input signal) |
| Operating Temperature | -20°C to +70°C |
| Dimensions | Single-slot Ovation chassis compatible (121mm×63mm×165mm) |
| Weight | 0.3kg |
| Certifications | UL 508, IEC 61010-1 |
| Key Function | High-density discrete signal acquisition; hot-swappable; EMI-resistant |
Advantages and Features WESTINGHOUSE 1C31234G01
- High-Density Configurable Inputs: WESTINGHOUSE 1C31234G01 packs 16 channels into a single chassis slot, with sink/source configurability eliminating the need for multiple module types and reducing inventory costs by 30%.
- Robust Isolation & Noise Immunity: 500V AC isolation prevents cross-talk and surge damage, ensuring reliable signal capture even in high-EMI environments with nearby motors or transformers.
- Hot-Swappable Design: Replace WESTINGHOUSE 1C31234G01 without powering down the Ovation chassis, cutting maintenance downtime by up to 90% compared to non-hot-swappable alternatives.
- Real-Time Visual Diagnostics: Front-panel channel LEDs enable instant fault identification, slashing troubleshooting time and improving system availability for critical processes.
- Seamless Ovation Ecosystem Integration: Native compatibility with Ovation controllers and backplanes simplifies engineering, commissioning, and system upgrades with zero custom configuration required.
Application Cases
- 600MW Coal-Fired Power Plant Auxiliary Control: A utility deployed WESTINGHOUSE 1C31234G01 to monitor boiler feed pump statuses, cooling tower fan interlocks, and ash handling system limit switches. The module’s fast response time ensured real-time activation of safety logic, reducing unplanned outages by 22% and improving plant efficiency.
- Offshore Oil Platform Process Monitoring: An oil and gas operator integrated WESTINGHOUSE 1C31234G01 into its platform DCS to track isolation valve positions and emergency shutdown (ESD) signals. The module’s rugged isolation and wide temperature tolerance withstood salt spray and extreme temperature swings, delivering 99.99% uptime over a 2-year deployment.
- Automotive Paint Shop Automation: A vehicle manufacturer used WESTINGHOUSE 1C31234G01 to capture conveyor line position switches and spray booth safety interlocks. Configurable sink/source inputs simplified wiring with mixed field devices, while hot-swappable design allowed maintenance during production shifts without line shutdowns.
Competitor Comparison
| Comparison Item | WESTINGHOUSE 1C31234G01 | Honeywell 8C-TDIL08 DI Module | Emerson DeltaV DI 16 Channel Module |
|---|---|---|---|
| Channel Count | 16 | 8 | 16 |
| Input Voltage | 48V DC (configurable) | 24V DC (fixed) | 24/48V DC (selectable) |
| Isolation Rating | 500V AC | 250V AC | 500V AC |
| Hot-Swap Support | Yes | No | Yes |
| Response Time | ≤10ms | ≤20ms | ≤10ms |
| Estimated Price (USD) | ~$450 | ~$320 | ~$500 |
Selection Suggestions
- Choose WESTINGHOUSE 1C31234G01 for Ovation DCS systems requiring high-density 16-channel DI with 48V compatibility and rugged isolation for harsh industrial environments.
- Opt for WESTINGHOUSE 1C31234G01 in power and oil & gas applications where hot-swappable maintenance and fast signal response are critical to minimizing downtime.
- Select WESTINGHOUSE 1C31234G01 when integrating mixed sink/source field devices to avoid the cost and complexity of multiple module types.
- Use WESTINGHOUSE 1C31234G01 for legacy Ovation DCS upgrades, leveraging native compatibility to streamline expansion without custom programming.
Precautions
- Install WESTINGHOUSE 1C31234G01 in a compatible Ovation chassis to ensure proper backplane communication and power distribution.
- Match field device wiring to the module’s sink/source configuration; incorrect wiring will cause signal loss or module damage.
- Use shielded twisted-pair cables for field wiring to minimize electromagnetic interference, especially in environments with high-power equipment.
- Follow ESD protection protocols when handling WESTINGHOUSE 1C31234G01, particularly during hot-swap operations, to prevent static damage to internal components.
- Regularly inspect front-panel LEDs and use Ovation System Studio software to review diagnostic logs, identifying open circuits or channel faults before they impact process control.
- Maintain the module’s operating temperature within -20°C to +70°C; use chassis cooling fans in high-temperature installations to prevent overheating.

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PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours
Email: sales@plcfcs.com
Phone:+86 15343416922
Wechat:+86 15343416922
PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours




Email: jiedong@sxrszdh.com
Phone / Wechat:+86 15340683922
Wechat:+86 15343416922