Description
3. Key Technical Specifications
- Model: D200136
- Manufacturer: Metso / Valmet Automation (associated with DNA / DCS systems)
- Type: Digital Input Module
- Typical Operating Voltage: 24 V DC
- Function: Acquires and processes discrete digital input signals from field devices
- System Compatibility: Metso DNA / Valmet Distributed Control Systems and related automation platforms
- Form Factor: Standard industrial module (cabinet / rack mount)
- Protection: Typically IP20 for control cabinet installation
Note: Exact channel count, isolation, filtering, and backplane details should be verified against the physical module label or original system documentation, as public datasheets for this specific number are limited.
4. Product Introduction
The D200136 is a digital input module used in industrial automation and process control systems, particularly those associated with Metso / Valmet platforms. It interfaces field devices (switches, sensors, interlocks, etc.) to the higher-level control system by converting discrete signals into process data.
Maintenance and controls engineers use this module when replacing failed input cards or expanding digital input capacity in existing installations. Because detailed public documentation is limited, correct identification of the existing unit and system context is essential. Available units are typically New Surplus stock.

D200136

D200136
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Inputs not updating | Power, wiring, or module fault | ✅ High | Check 24 V DC supply and field wiring | Verify power and input status LEDs |
| System does not recognize module | Seating or configuration issue | ✅ High | Reseat module and check addressing | Confirm slot and configuration |
| Intermittent signals | Noise, grounding, or filter issue | ✅ Medium | Inspect shielding and grounding | Improve cable practices if needed |
| Channel stuck on/off | Field device or input circuit fault | ✅ High | Test with known signal source | Isolate field device vs. module |
| Overheating | Overload or poor ventilation | ✅ Low | Monitor module temperature | Ensure adequate cabinet cooling |
If the issue persists, record the exact part number from the label, any diagnostic codes, and the system configuration before contacting support.
6. Frequently Asked Questions (FAQ)
Q: What systems use the D200136?
A: It is associated with Metso / Valmet automation and DCS platforms for digital input signal processing.
Q: Is detailed technical documentation available?
A: Public datasheets are limited. Users should refer to the original system manuals or contact the supplier for any available specifications.
Q: Is this module still in production?
A: It appears to be a specialized or legacy item primarily available through New Surplus channels.
Q: Can I substitute a different digital input module?
A: Only if the replacement is confirmed form-fit-function compatible with the specific system and backplane. Incorrect substitution can cause system faults.
Q: Why is pricing variable for this part?
A: As a specialized or low-volume automation module sold through surplus channels, pricing depends on remaining stock and condition.
Q: What should I verify before ordering?
A: Confirm the complete part number on the existing module (including any revision), note the system it is installed in, and request additional details or photos from the supplier if needed.
Q: What warranty is typically offered?
A: Most industrial surplus suppliers offer a limited warranty (commonly 12 months) on functionally tested units. Confirm terms with the specific seller.

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