Emerson 1C31125G01 Ovation Digital Output Module
The Emerson 1C31125G01, also cataloged as the 1C31125G01 Digital Output Module, operates as a dedicated hardware component for single-ended discrete signal execution within Emerson Ovation DCS platforms. Functioning as a personality terminal base paired with an electronics module such as the 1C31122G01, the unit drives 16 isolated digital channels to execute discrete on/off commands for solenoids, relays, and field valves.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1C31125G01 |
| Brand | Emerson |
| Origin | USA |
| Weight | 0.12 kg |
| Dimensions | Standard Ovation base dimensions |
| Operating Temp | Standard industrial range |
| Power Consumption | 3.0 W passive / 25.6 W with 24 VDC aux power |
| Product Type | Digital Output Module |
| Output Channels | 16 discrete channels |
| Output Voltage Range | 0 to 60 VDC nominal |
| Signal Configuration | Single-ended direct output |
| System Pairing | 1C31122G01 Electronics Module |
Channel-to-Channel Isolation & Galvanic Backplane Protection
The module incorporates channel-to-channel isolation networks that isolate field output circuits from internal controller logic buses. This galvanic barrier blocks high-voltage transients and ground potential differences across field cabling from penetrating the backplane. Supporting output switching levels from 0 to 60 VDC across 16 independent points, the assembly maintains low signal propagation delay while sustaining steady discrete power delivery under variable field auxiliary loads.
Frequently Asked Questions
Q: How does the two-part modular design simplify module maintenance?
A: The 1C31125G01 functions as the terminal base personality unit while retaining field wiring connections. You can unlatch and swap the companion 1C31122G01 electronics card without disturbing terminal screws or disconnecting external field loops.
Q: What power source energizes the field output loads?
A: The module relies on an external auxiliary 24 VDC supply connected to the terminal base to drive field loads, drawing 3.0 W for passive internal sensing and up to 25.6 W under full load switching conditions.
Q: What is the maximum nominal output voltage rating per channel?
A: Each discrete channel accommodates single-ended DC switching voltages rated up to 60 VDC max.
Field Installation Guidelines
Follow these sequential physical installation steps when assembling and wiring the module base:
- De-energize all field power supplies and auxiliary logic rails before securing the base assembly.
- Snap the 1C31125G01 personality module onto the designated DIN-rail position within the Ovation enclosure.
- Terminate discrete output wiring on the screw block terminals, ensuring single-ended signal lines match channel polarity assignments.
- Verify that cable shielding lands cleanly onto the cabinet earth grounding bar to eliminate coupled electromagnetic noise.
- Align the companion 1C31122G01 electronics module and push firmly until the locking tab fully latches into the base.
- Energize auxiliary loop power and check front-panel LEDs to confirm bus initialization and active channel states.
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| Warranty | 12 Months |
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