



High‑Density Digital Input for Efficient Field Sensing
The Ovation 1C31233G04 16‑Channel Compact Digital Input Electronic Module is engineered for space‑efficient discrete signal acquisition within the Emerson Ovation Distributed Control System (DCS). Designed to deliver reliable digital sensing in a compact footprint, this module supports high‑density input monitoring with robust noise immunity and straightforward field wiring.
Ideal for installations where panel space is limited or where dense input mapping is required, the 1C31233G04 combines precision signal detection with strong industrial reliability. It integrates seamlessly into Ovation rack systems and works with a wide range of field devices.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Emerson Ovation |
| Model | 1C31233G04 |
| Module Type | Compact Digital Input Electronic Module |
| Input Channels | 16 discrete inputs |
| Input Configuration | Common 24 VDC input field supply |
| Input Type | Electronic (high impedance sensing) |
| Input Voltage | 24 VDC nominal |
| Input Current | Low‑level electronic input (mA class) |
| Isolation | Optical isolation per channel group |
| Backplane Interface | Ovation standard rack connector |
| Power Source | Rack backplane power |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | –40 to 70 °C |
| Humidity | 5 % to 95 % non‑condensing |
| Dimensions (HxWxD) | Approx. 125 × 35 × 150 mm |
| Weight | Approx. 0.27 kg |
| Mounting | Rack slot installation |
Applications
The 1C31233G04 compact digital input module is commonly used where dense discrete sensing is needed:
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Monitoring limit switches, safety interlocks, and discrete sensor stacks
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Reading operator panel inputs including pushbuttons and selector switches
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Logic status inputs for complex process sequences
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Alarm and condition detection for system reporting and interlocks
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Compact I/O sections where standard modules might not fit efficiently
Technical FAQs
1. How many digital inputs are supported?
Sixteen discrete input channels are provided.
2. What voltage level is required?
24 VDC nominal field input voltage is used.
3. What type of input sensing does the module use?
Electronic (high‑impedance) input conditioning for efficient and accurate sensing.
4. Is electrical isolation provided?
Yes, optical isolation is used per channel group.
5. Does the module require an external power supply?
No; it draws power from the Ovation rack backplane.
6. What is the operating temperature range?
0 °C to 55 °C.
7. How is field wiring connected?
Field wiring is typically made via front‑accessible screw terminals.
8. Can it be hot‑swapped?
Hot‑swap capability depends on the overall system and rack configuration.
9. Does it interface with other Ovation I/O modules?
Yes, it integrates seamlessly into the Ovation I/O network and control logic.
10. What maintenance is recommended?
Regular inspection of terminal connections and proper cable management help ensure reliable long‑term operation.