Product Description
Product Parameters for P0927AH (FBM214b HART Communication Input Module)
📘 Product Overview
| Field | Details |
|---|---|
| Manufacturer | Foxboro (by Schneider Electric) |
| Part Number | RH927AH (supersedes P0927AH) |
| Product Type | FBM214b HART Communication Input Module |
| Function | Provides eight individually isolated 4–20 mA analog input channels with HART communication support |
| System Compatibility | Foxboro Evo™ Process Automation System |
| Associated PSS Document | PSS 31H-2S214 (FBM214b, HART Communication Input Module) |
⚙️ Functional Specifications
| Feature | Specification |
|---|---|
| Input Channels | 8 individually isolated channels |
| Input Signal Types | - Standard 4–20 mA analog signal - Digital HART Frequency Shift Keying (FSK) signal superimposed on 4–20 mA |
| HART Compatibility | Supports HART instruments compliant with Versions 5, 6, or 7 |
| Communication | - Point-to-point, master/slave, asynchronous, half-duplex at 1200 baud - 2 messages per second - Supports HART universal commands via Intelligent Field Device Configurator (IFDC) |
| Error Checking | Parity on each byte, one CRC check byte |
| Maximum Distance | Up to 3030 m (10,000 ft) per HART FSK physical layer specification HCF_SPEC-54, Revision 8.1 (reduced with intrinsic safety barriers) |
| Analog Input Accuracy | ±0.03% of full scale (includes nonlinearity) |
| Temperature Coefficient | 50 ppm/°C |
| Resolution | 15 bits |
| Update Rate | 100 ms per channel |
| Integration Time | 500 ms |
| Common Mode Rejection | >100 dB at 50 or 60 Hz |
| Normal Mode Rejection | >35 dB at 50 or 60 Hz |
| Sense Resistor | 61.5 Ω nominal |
| Total Input Resistance | - Externally Powered: 282 Ω - Internally Powered: 302 Ω |
| Loop Power Supply | - Internal: 24 V DC ±10% per channel, 18.5 V DC minimum at 20.5 mA - External: Optional, requires Cable Balun Module (RH903SV) for 2+ channels to prevent crosstalk |
| Loop Supply Protection | Current-limited to <37 mA per channel |
| Fieldbus Communication | Redundant 2 Mbps module Fieldbus (paths A or B) |
| Software Requirements | I/A Series v8.2–v8.8 or Control Core Services v9.0 or later |
📏 Physical Specifications
| Feature | Specification |
|---|---|
| Weight | 284 g (10 oz) approximate |
| Dimensions | - Height: 102 mm (4 in), 114 mm (4.5 in) with mounting lugs - Width: 45 mm (1.75 in) - Depth: 104 mm (4.11 in) |
| Construction | Rugged extruded aluminum exterior |
| Mounting | - Modular baseplate (DIN rail or 19-inch rack with mounting kit) - Compatible with 100 Series conversion mounting structure |
| Visual Indicators | LEDs for operational status and channel communication activity |
| Termination | - Connects to DIN rail-mounted Termination Assembly (TA) via Type 1 cables - TA Part Number: RH924JH (supersedes P0924JH) with compression terminals |
| Cable Types | - Polyurethane (P/PVC) or Low Smoke Zero Halogen (LSZH) - Lengths: 0.5 m (1.6 ft) to 30 m (98.4 ft) (see Table 2, page 10) |
| Cable Connections | - FBM Baseplate End: 37-pin D-subminiature - TA End: 25-pin D-subminiature |
| Field Wiring | - Compression-type: 0.2–4 mm² solid, 0.2–2.5 mm² stranded, 24–12 AWG - Stranded with ferrules: 0.2–2.5 mm² |
🌡️ Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -20 to +70°C (-4 to +158°F) |
| Operating Humidity | 5 to 95% (noncondensing) |
| Operating Altitude | -300 to +3,000 m (-1,000 to +10,000 ft) |
| Storage Temperature | -40 to +70°C (-40 to +158°F) |
| Storage Humidity | 5 to 95% (noncondensing) |
| Storage Altitude | -300 to +12,000 m (-1,000 to +40,000 ft) |
| Contamination | Class G3 (harsh) per ISA S71.04, EIA 364-65 Class III |
| Vibration | 7.5 m/s² (0.75 g) from 5 to 500 Hz |
✅ Regulatory Compliance
| Certification Type | Details |
|---|---|
| EMC | - European EMC Directive 2004/108/EC and 2014/30/EU - Meets EN61326-1:2013 Class A Emissions and Industrial Immunity Levels |
| Product Safety | - UL/UL-C listed for Class I, Groups A-D, Division 2, T4 (per B0400FA) - Meets Class 2 requirements (NFPA 70, CSA C22.1) - DEMKO certified Ex nA IIC T4 for Zone 2 (per B0400FA) |
| RoHS Compliance | Complies with European RoHS Directive 2011/65/EU |
| Marine Certification | ABS Type Approved and Bureau Veritas Marine certified for Environmental Category EC31 |
| Calibration | No calibration required for module or termination assembly |
🔧 Additional Features
| Feature | Details |
|---|---|
| Isolation | - Galvanic isolation per channel from each other, ground, and module logic - Withstands 600 V AC common mode potential for 1 minute |
| Power Requirements | - Input Voltage: 24 V DC +5%/-10% (redundant) - Consumption: 7 W max - Heat Dissipation: 4 W max |
| Cable Balun Module | - Part Number: RH903SV (supersedes P0903SV) - Required for external power supply with 2+ channels to prevent crosstalk - Contains 4 baluns |
| Removal/Replacement | Can be removed/replaced without disconnecting field wiring, power, or communication cables |
| 100 Series Upgrade | Compatible with RH924JH TA or Termination Assembly Adapter (TAA) for 100 Series FBM01 replacement |
📦 Ordering Information
| Field | Details |
|---|---|
| Part Number | RH927AH (supersedes P0927AH) |
| Related Components | - Termination Assembly: RH924JH (supersedes P0924JH) - Cable Balun Module: RH903SV (supersedes P0903SV) - Type 1 Cables (P/PVC): RH916DA–RH916DJ, RH931RM - Type 1 Cables (LSZH): RH928AA–RH928AK |
| Related PSS Documents | - PSS 31H-2SOV: Standard 200 Series Subsystem Overview - PSS 31H-2W100: 100 Series FBM Upgrade Subsystem Overview - PSS 31H-2CERTS: Agency Certifications - PSS 31H-2W4: Termination Assembly Adapter Modules - PSS 31H-2SBASPLT: Modular Baseplates - PSS 31H-2W8: 100 Series Conversion Mounting Structures |