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3. Key Technical Specifications
- Product Type: Termination Assembly (passive or signal-conditioned variant for HART)
- Compatible Module: FBM216 (redundant HART communication input interface, 8 group-isolated channels)
- Signal Support: 4–20 mA analog with superimposed HART digital communication
- Mounting: DIN rail (32 mm / 35 mm compatible)
- Channel Count: Supports 8 channels
- Isolation: Group isolation / channel isolation provided in conjunction with FBM216
- HART Compatibility: Supports HART protocol (point-to-point, master/slave, typically up to 2 messages/second)
- Connector: Standard termination cable interface to FBM baseplate
- Environmental Rating: Compatible with Class G3 harsh environments
- Certifications: Matches UL/cUL and CENELEC listings used with the FBM214/FBM216 subsystem
- Notes: Often paired with FBM216 for redundant HART analog input applications; verify exact variant against system drawings
4. Product Introduction
The Foxboro P0917XQ is a DIN-rail mounted termination assembly used with the FBM216 redundant HART analog input module in the I/A Series DCS. It provides the field wiring interface for 4–20 mA signals that also carry HART digital communication from smart transmitters.
Engineers use the P0917XQ when they need a genuine OEM terminal base that supports the FBM216’s group-isolated channels and allows module replacement without disturbing field wiring. Correct installation maintains signal integrity for both the analog process variable and the superimposed HART data, which is critical in applications requiring device diagnostics and configuration over the same pair of wires.
P0917XQ
P0917XQ
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No analog or HART signal | Open or high-resistance connection at TA terminals | ✅ High | Continuity check from field device to TA terminals; verify torque | Re-terminate wires; confirm correct wire size and ferrules |
| Intermittent readings or lost HART communication | Loose terminals, oxidation, or poor shield | ✅ High | Visual inspection + live wiggle test while monitoring analog value and HART status | Clean contacts, re-torque, ensure proper shield grounding |
| All channels dead after TA swap | Wrong TA type or cable mis-seated | ✅ High | Confirm part number P0917XQ matches documentation | Install only the correct TA; reseat termination cable |
| HART communication fails but analog works | Wiring, shield, or noise issue at TA | ✅ Medium | Check HART modem connection and cable quality; measure noise | Correct grounding and cable routing per HART guidelines |
| Physical damage or cracked housing | Mechanical stress or incorrect DIN-rail installation | ✅ Medium | Visual inspection of housing and mounting clips | Replace the TA; do not field-repair |
| FBM reports channel or HART faults | Field device issue or voltage outside range | ❌ Low (usually field or FBM side) | Measure loop current and HART signal quality at TA terminals | Verify transmitter and FBM configuration first |
If problems continue, capture FBM diagnostic data and HART status, photograph the TA and wiring, and contact technical support with the information.
6. Frequently Asked Questions (FAQ)
Q: Is the P0917XQ the actual module? A: No. It is the termination assembly. The is the redundant HART analog input module that connects to this TA via cable.
Q: What signals does the P0917XQ support? A: It supports the ’s eight group-isolated 4–20 mA channels with superimposed HART communication. Analog accuracy and HART messaging rates are determined by the FBM.
Q: Can I hot-swap the FBM while using this TA? A: Yes. The design allows removal and replacement of the without disconnecting field wiring attached to the P0917XQ, provided plant procedures allow it.
Q: Why is this unit priced lower than a factory-new order? A: This is New Original / New Surplus stock. It is genuine Foxboro material that has not been installed in continuous service and carries functional verification. It is not refurbished.
Q: Do I need to reconfigure anything when replacing the TA? A: No. The is a passive (or minimally conditioned) wiring interface. HART parameters, channel configuration, and scaling remain in the and the control processor.
Q: What is the warranty and typical lead time? A: Standard coverage is 1 year. Units are normally in stock and ship within a few business days. Confirm current availability when ordering.
Q: Is this compatible with non-redundant FBM214 systems? A: The is primarily associated with the (redundant) configuration. Always verify against your specific system drawings and the applicable PSS before substitution.
