Description
Product Description
Product Parameters
- Brand/Model: FOXBORO FBM230 RH926GU
- Core Digital Input Parameters
- Input Channels: 32 isolated channels (4 groups of 8 channels)
- Input Voltage: 24V DC (18-30V DC range)
- Input Type: Sinking (NPN) / Sourcing (PNP) configurable per channel group
- Response Time: ≤ 1ms (filtered mode), ≤ 10µs (fast mode)
- Isolation: 2500V AC channel-to-channel, channel-to-ground (optical isolation)
- Input Current: 4mA (typical) at 24V DC
- System & Diagnostic Parameters
- Compatible Systems: Foxboro I/A Series DCS (FCP270, FCP280), Foxboro Evo™ DCS
- Diagnostic Functions: Channel-level open/short detection, overvoltage alerts, LED status indicators (per channel group)
- Communication: Foxboro I/A Series backplane (Fieldbus H1 optional for remote I/O)
- Configuration: Foxboro I/A Series Workbench, Evo™ Engineering Studio
- Environmental & Physical Parameters
- Operating Temperature: -20°C ~ +60°C
- Storage Temperature: -40°C ~ +85°C
- Vibration Resistance: 5g (10-2000Hz, IEC 60068-2-6)
- Shock Resistance: 30g (11ms half-sine wave)
- Power Supply: 24V DC (from DCS chassis), power consumption ≤ 12W
- Protection Grade: IP20 (rack-mount installation)
- Dimensions: 100mm (W) × 200mm (H) × 150mm (D) (I/A Series chassis-compatible)
- Installation: Hot-swappable (Foxboro certified chassis)
Advantages & Features
- High-Density Channel Design: FOXBORO FBM230 RH926GU packs 32 digital input channels into a single module, reducing chassis space requirements by up to 75% compared to low-density modules and lowering overall system hardware costs.
- Dual Input Configuration: Support for both sinking (NPN) and sourcing (PNP) inputs per channel group eliminates the need for separate modules for different sensor types, simplifying system design and inventory management.
- Robust Isolation & Protection: 2500V AC optical isolation and surge protection shield the module and DCS from electrical faults (e.g., short circuits, ground loops), ensuring uninterrupted operation in harsh industrial environments.
- Real-Time Diagnostics & Hot-Swap: Channel-level diagnostics and LED indicators enable rapid fault detection, while hot-swappable installation allows module replacement without shutting down the DCS—critical for mission-critical applications like power plant turbine control.
Application Fields & Cases
- Oil & Gas Pipeline Monitoring: A midstream oil company deployed FOXBORO FBM230 RH926GU modules in its Foxboro I/A Series DCS to monitor 32 discrete signals (valve position switches, pressure relief sensors) per module along a 500km pipeline. The high-density design reduced chassis footprint by 60%, while optical isolation protected against electrical interference from pipeline pumps and motors.
- Power Generation Turbine Control: A combined-cycle power plant used FOXBORO FBM230 RH926GU to acquire discrete signals from turbine safety interlocks (e.g., overspeed switches, vibration sensors) and generator breakers. The module’s fast response time (≤10µs) ensured immediate detection of critical faults, triggering safety shutdowns to prevent equipment damage.
- Chemical Plant Batch Processing: A petrochemical facility integrated FOXBORO FBM230 RH926GU into its Foxboro Evo™ DCS to monitor discrete inputs from reactor lid switches, agitator motor status sensors, and emergency stop buttons. Hot-swappable installation allowed module maintenance during production runs, avoiding costly batch interruptions.
Competitor Comparison
| Comparison Dimension | FOXBORO FBM230 RH926GU | Competitor 1 (Emerson DeltaV DI Module) | Competitor 2 (Siemens S7-400 DI Module) |
|---|---|---|---|
| Channel Density | 32 channels/module | 16 channels/module | 16 channels/module |
| Input Configuration | Sinking/sourcing (per group) | Sinking only | Sourcing only |
| Isolation Rating | 2500V AC | 1500V AC | 1000V AC |
| Hot-Swap Support | Yes (native) | Yes (native) | No (system shutdown required) |
| Core Advantages | High density, dual input types | DeltaV ecosystem integration | Siemens PLC/DCS compatibility |
Selection Suggestions & Precautions
- Selection Suggestions: FOXBORO FBM230 RH926GU is ideal for Foxboro I/A Series/Evo™ DCS users needing high-density digital input with dual sinking/sourcing support (e.g., oil & gas, power generation). For Emerson DeltaV DCS, choose DeltaV DI modules; for Siemens S7-400/PCS 7 systems, select S7-400 DI modules.
- Precautions:
- Verify compatibility with Foxboro DCS firmware (minimum v9.0 for I/A Series, v2.0 for Evo™) before installation—older firmware may cause configuration or communication errors.
- Use shielded twisted-pair cables for digital input wiring to minimize EMI interference, especially in areas with high electrical noise (e.g., near switchgear or VFDs).
- Configure input type (sinking/sourcing) per channel group via DCS engineering software to match connected sensors—incorrect settings will cause signal detection failures.
- Follow Foxboro hot-swap procedures (per module documentation) to avoid damaging the DCS chassis or module during replacement.
- Install the module only in Foxboro-certified chassis to ensure proper power delivery and backplane communication with the DCS.


JANCD-GIF02 PLC
JANCD-FC211 PLC
JANCD-MIO03 PLC
JANCD-YBB02 PLC
JANCD-FC620 PLC
JANCD-MB22 PLC
JANCD-10O3E PLC
MM01C-02 PLCCPU
JANCD-XBB01 PLC
Email: sales@plcfcs.com
Phone:+86 15343416922
Wechat:+86 15343416922
PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours




Email: jiedong@sxrszdh.com
Phone / Wechat:+86 15340683922
Wechat:+86 15343416922