Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Foxboro / Invensys / Schneider Electric |
| Module Type | FBM219 — 24-channel voltage monitor input + 8-channel discrete output |
| Order Code | P0916RH |
| Input Channels | 24 group-isolated voltage-monitor inputs |
| Output Channels | 8 discrete outputs |
| Fieldbus Interface | Redundant 2 Mbps module fieldbus to associated FCM or FCP |
| Supply Voltage | 24 V DC (verify exact tolerance with OEM manual) |
| Platform | Foxboro I/A Series DCS |
| Mounting | FBM terminal assembly / DIN-rail mounted field termination |
| Lifecycle Status | Legacy / discontinued spare; verify against current OEM lifecycle notices |
| Warranty | 12 months recommended for non-human damage |
Product Introduction
FBM219 P0916RH is one of those Foxboro cards that keeps old I/A Series racks alive. It is not a processor. It is not a communication gateway. It is a field interface module that watches 24 voltage signals and drives 8 discrete outputs. That sounds simple until someone labels it as a “redundancy module” or a “core controller” and ships it into a plant that needs voltage monitoring.Engineers keep this module in service because the cabinet already uses it. The I/A Series FBM ecosystem is mature, and replacing a working card with the wrong function is a fast way to create ghost alarms. The FBM219 communicates over the 2 Mbps module fieldbus to its FCM/FCP partner, so the slot, cable, and termination matter as much as the board itself. I have seen units with the correct P0916RH label arrive with damaged terminal connectors or missing fieldbus cables. The module looked fine. The wiring did not.
Quality SOP & Tech Pitfalls
The Lab Report (SOP)
- Visual inspection: confirm FBM219 label, P0916RH code, board revision, and terminal block condition.
- Counterfeit check: compare label font, PCB silkscreen, connector wear, and serial format against known Foxboro FBMs.
- Connector inspection: verify fieldbus connectors, terminal screws, LED indicators, and backplane contacts.
- Live test: power up on a compatible Foxboro I/A test rack; record LED sequence and module recognition.
- Firmware/logging: photograph hardware/firmware revision labels and record them in the test report.
- Basic electrical checks: insulation resistance and continuity where safe and applicable.
- Final packing: ESD bag, anti-static foam, and photo report with serial, label, and revision data.
The Engineer’s Warning (Pitfalls)
- Ignore any listing that calls FBM219 a “core controller” or “redundancy processor.” That description belongs to CP/FCP-class hardware, not this FBM.
- The “RH916RH” code is suspect. The widely listed order code is P0916RH. If the label actually reads RH916RH, photograph it before accepting the part.
- Voltage-monitor inputs are not generic analog inputs. Wrong scaling or wrong termination will give believable but incorrect readings.
- Do not mix up FBM219 with FBM241. Both handle voltage inputs and discrete outputs, but the channel counts and sourcing options differ.
Installation & Configuration Guide
1. Pre-Installation
- ⚠️ Follow site lockout/tagout rules before opening the cabinet.
- ⚠️ Confirm the module is FBM219 P0916RH, not FBM241, FBM207, or a processor card.
- Photograph the existing module, label, slot, terminal block wiring, and fieldbus cable routing.
2. Removal
- Label every field wire and terminal point.
- Disconnect the 2 Mbps fieldbus cable carefully.
- Release the terminal assembly and remove the FBM without forcing the backplane connector.
3. Installation
- Copy all terminal labels, scaling notes, and slot positions from the old module.
- Inspect the replacement for bent pins, burned terminals, or loose fieldbus connectors.
- Seat the FBM firmly and reconnect the fieldbus cable.
- Reconnect field wires exactly as photographed.
4. Power-On & Testing
- Verify 24 V DC supply before enabling the module.
- Check LED status and controller diagnostics for module recognition.
- Confirm voltage-monitor readings against known references.
- Verify all 8 discrete outputs with safe test points.
- Keep the old module until the system has run through at least one full production cycle.
Compatible Replacement Models
| Compatibility | Model / Option | Notes |
|---|---|---|
| ✅ Drop-in replacement | Foxboro FBM219 P0916RH, same revision | Lowest risk; verify terminal assembly and fieldbus cable |
| ⚠️ Software compatible | Foxboro FBM219 with different hardware revision | May require configuration check, scaling verification, or controller download |
| ❌ Hardware modification required | FBM241, FBM207, or non-FBM219 cards | Not recommended; channel counts and functions differ |
Frequently Asked Questions (FAQ)
Is FBM219 P0916RH the same as RH916RH?
Not necessarily. The standard order code is P0916RH. “RH916RH” may be a typo or a misread label. Verify with a clear photo before shipping.Can I use FBM219 as a general analog input card?
No. It is a voltage-monitor input module with 8 discrete outputs. Do not treat it as a 4–20 mA analog input card without confirming the OEM manual.What if the module powers up but the readings look wrong?
Check terminal wiring, scaling, channel assignment, and fieldbus connection. A recognized module can still report bad values if the termination or configuration is off.Can I hot-swap this module?
Only if the Foxboro I/A Series cabinet and application explicitly support it. Many older racks do not. Treat it as a cold swap unless the site procedure says otherwise.Is this module new or used?
It depends on the batch. FBM219 P0916RH is commonly available as new surplus or verified used stock. Confirm condition from the serial number and test report.Do you provide a warranty?
A 12-month warranty is typical for non-human damage. Functional coverage should be tied to the test report, serial number, and installed configuration.Can you confirm the exact input range?
Not without the OEM manual. Public listings agree on 24 voltage-monitor inputs and 8 discrete outputs, but the exact voltage range and output rating must come from the Foxboro documentation.
