Product Description
Product Parameters for RH922VU (FBM215 HART Communication Output Module)
📘 Product Overview
| Field | Details |
|---|---|
| Manufacturer | Schneider Electric (Foxboro) |
| Part Number | RH922VU (supersedes P0922VU) |
| Product Type | FBM215 HART Communication Output Module |
| Function | Eight channel-isolated outputs for 4 to 20 mA analog signals with optional HART digital FSK signals; serves as a HART field device host |
| System Compatibility | Foxboro Evo Process Automation System |
| Associated PSS Document | PSS 31H-2S215 (FBM215 HART Communication Output Module) |
⚙️ Functional Specifications
| Feature | Specification |
|---|---|
| Output Channels | 8 isolated output channels |
| Output Types | - Standard 4 to 20 mA analog signal - Digital HART Frequency Shift Keying (FSK) signal superimposed on 4 to 20 mA analog signal |
| Supported HART Versions | Compliant with HART Version 5, 6, or 7 specifications |
| HART Communication | - Point-to-point, master/slave, asynchronous, half-duplex at 1200 baud - 2 messages per second per channel - Supports HART universal, common practice, and device-specific commands (no burst mode) - Implemented via Intelligent Field Device Configurator (IFDC, refer to PSS 21S-8A3 B3) |
| Error Checking | Parity on each byte, one CRC check byte per message |
| Fastest ECB Block Period | 100 msec (refer to Control Processor Sizing Guidelines for optimal loading) |
| 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 Accuracy | ±0.05% of span (4 to 20 mA, includes linearity) |
| Output Load | 750 Ω maximum |
| Maximum Rate of Change | 20 mA in 60 milliseconds |
| Resolution | 13 bits |
| Loop Power Supply | - Isolated power supply per channel, current limited, voltage regulated - Normal operation: constant current into 0 to 750 Ω load - Limited to ~25 mA; up to 100 mA if output FET shorts |
| Isolation | - Galvanic (optical and transformer) isolation between channels, and from ground and module logic - Withstands 600 V AC for one minute between channels and ground (not for permanent connection to such voltages) |
| Communication | Communicates with Fieldbus Communication Module (FCM) or Field Control Processor (FCP) via redundant 2 Mbps module Fieldbus |
| Calibration | No calibration required for module or termination assembly |
🔋 Power Requirements
| Feature | Specification |
|---|---|
| Input Voltage Range | 24 V DC ±5% (redundant) |
| Power Consumption | 7 W (maximum) |
| Heat Dissipation | 5 W (maximum) |
📏 Physical Specifications
| Feature | Specification |
|---|---|
| Mounting | - Module: Mounts on a modular baseplate (DIN rail horizontal/vertical or 19-inch rack with mounting kit; also compatible with 100 Series conversion mounting structure, see PSS 31H-2W8) - Termination Assembly: Mounts on DIN rail (supports 32 mm and 35 mm styles) |
| Weight | - Module: 284 g (10 oz) approximate - Termination Assembly (Compression): 181 g (0.40 lb) approximate |
| Dimensions (Module) | - Height: 102 mm (4 in), 114 mm (4.5 in) including mounting lugs - Width: 45 mm (1.75 in) - Depth: 104 mm (4.11 in) |
| Dimensions (TA) | - Compression TA (RH926SP): Width 125 mm (4.92 in), Height 76 mm (2.99 in) above DIN rail (see page 10) |
| Construction | - Module: Rugged extruded aluminum exterior - TA: Polyamide (PA), compression type |
| Visual Indicators | LEDs on module front indicate operational status and channel communication activity |
| Removal/Replacement | Can be removed/replaced without disconnecting field device termination cabling, power, or communication cabling |
| Field Termination Connections | - Compression: 0.2 to 4 mm² (24 to 12 AWG) solid, 0.2 to 2.5 mm² stranded, 0.2 to 2.5 mm² with ferrules |
🌡️ Environmental Specifications
| Parameter | Operating | Storage |
|---|---|---|
| Temperature | -20 to +70°C (-4 to +158°F) (Module and PA TA) | -40 to +70°C (-40 to +158°F) |
| Relative Humidity | 5 to 95% (non-condensing) | 5 to 95% (non-condensing) |
| Altitude | -300 to +3,000 m (-1,000 to +10,000 ft) | -300 to +12,000 m (-1,000 to +40,000 ft) |
| Vibration | 7.5 m/s² (0.75 g) from 5 to 500 Hz | N/A |
| Contamination | Class G3 (Harsh) per ISA S71.04, based on EIA 364-65 Class III exposure testing |
Note: Environmental limits may be enhanced by the enclosure type (refer to the applicable enclosure PSS).
✅ Regulatory Compliance
| Certification Type | Details |
|---|---|
| Electromagnetic Compatibility (EMC) | - European EMC Directive 2004/108/EC (prior to April 20, 2016) and 2014/30/EU (from April 20, 2016) - 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 enclosure-based systems when connected to specified Foxboro Evo processor modules; meets Class 2 requirements per NEC (NFPA No.70) and CEC (CSA C22.1) (see B0400FA) - European Low Voltage Directive 2006/95/EC (prior to April 20, 2016) and 2014/35/EU (from April 20, 2016) - ATEX Directive 94/9/EC (prior to April 20, 2016) and 2014/34/EU (from April 20, 2016): DEMKO certified Ex nA IIC T4 for Zone 2 |
| RoHS Compliance | Complies with European RoHS Directive 2011/65/EU |
| Marine Certification | ABS Type Approved and Bureau Veritas Marine certified for Environmental Category EC31 |
🔌 Termination Assemblies and Cables
| Feature | Specification |
|---|---|
| Termination Assembly | - Part Number: RH926SP (supersedes P0926SP, P0917XV) - Type: Polyamide (PA), compression terminals, rated -20 to +70°C (-4 to +158°F) - Certification: UL/UL-C listed for Class I, Groups A-D, Division 2, T4; DEMKO certified Ex nA IIC T4 for Zone 2; supports Class 2 limited energy circuits (60 V DC, 30 V AC, 100 VA or less) if customer equipment complies |
| Termination Cable | - Type: Type 1 (37-pin D-sub at baseplate end, 25-pin D-sub at TA end) - Lengths: Up to 30 m (98 ft) - Materials: Polyurethane/PVC or Low Smoke Zero Halogen (LSZH, -40 to +105°C) - Part Numbers: e.g., RH916DG (20 m P/PVC), RH928AH (20 m LSZH) (see Table 2, page 8) |
| Migration Support | - Compatible with FBM37 (100 Series) TAs for field I/O wiring - Supports Termination Assembly Adapter (TAA) for 100 Series upgrade (see PSS 31H-2W4) |
🔧 Additional Features
| Feature | Details |
|---|---|
| HART Hand-Held Support | Provides sufficient loop resistance for HART Hand-Held Terminal or PC20 IFDC |
| Fieldbus Communication | Accepts communication from either path (A or B) of the 2 Mbps Fieldbus; switches to active path if one fails |
| Enclosure Suitability | Designed for Class G3 (harsh) environments per ISA S71.04 |
📦 Ordering Information
| Field | Details |
|---|---|
| Part Number | RH922VU (FBM215 Module) |
| Termination Assembly | RH926SP (Compression) |
| Termination Cables | Type 1 cables, lengths up to 30 m (see Table 2, page 8) |
| Related PSS Documents | - PSS 31H-2SOV (Subsystem Overview) - PSS 31H-2W100 (100 Series FBM Upgrade) - PSS 31H-2CERTS (Certifications) - PSS 31H-2W4 (TAA for 100 Series Upgrade) - PSS 31H-2SBASPLT (Baseplates) - PSS 31H-2W8 (100 Series Mounting) - PSS 21S-3CP270IC (CP270 Software) - PSS 31S-3FCPICS (FCP280 Software) |