FOXBORO FBM224 P0926GG Modbus Communication Module

The FBM224 Modbus Communication Interface Module provides an interface between Modbus slave devices (e.g., programmable logic controllers and field I/O devices) and the Control Processor (FCP280, FCP270/ZCP270, or CP60) of the Foxboro Evo™ Process Automation System or I/A Series system. It supports communication with devices adhering to RS-232, RS-422, or RS-485 standards and the Modbus RTU protocol.

Key Features

Conforms to Modbus RTU protocol.
Supports RS-232, RS-422, and RS-485 communication standards.
Integrates Modbus slave device data into the Foxboro control database.
Suitable for installation in Class 1, Division 2 and Zone 2 hazardous locations when used with the associated termination assembly (TA).

Functional Specifications

Modbus Communications

Interface: Four serial I/O ports for communication with up to four Modbus buses (RS-232, RS-422, and/or RS-485).
Port Configuration: Ports 1 & 2 and/or Ports 3 & 4 can be configured as a single logical port with redundant cables.
Bus Characteristics:
- RS-232: Direct connect via DB-25 cable.
- RS-422: 4-wire communication medium.
- RS-485: Twisted-pair shielded copper cable, single conductor pair.
- Transmission rates: 300 to 115,200 baud.
- Protocol: Modbus RTU mode, supports 8-bit characters with odd, even, or no parity; 1 or 2 stop bits.
I/O Capacity: Supports up to 64 devices per module (performance-dependent), with up to 2000 DCI point connections.
Scan Rate: Configurable from 0.5 to 255 seconds.
Device Address Range: 1 to 247.
Data Types: 2-byte/4-byte signed or unsigned integers, 4-byte IEEE single-precision floating values, or binary values (byte and bit swapping selectable).

Isolation and Fieldbus Communication

Channel Isolation: Each communication channel is galvanically isolated, rated to withstand 600 V AC for one minute.
Fieldbus Communication: Communicates with FCM or CP via redundant 2 Mbps Fieldbus.

Power Requirements

Input Voltage: 24 V DC (+5%, -10%).
Power Consumption: 7 W (maximum).
Heat Dissipation: 7 W (maximum).

Regulatory Compliance

Electromagnetic Compatibility (EMC)

Standards: Meets European EMC Directive 2004/108/EC, EN61326:2013 (Class A Emissions, Industrial Immunity).
Immunity Standards:
- IEC 61000-4-2: ESD Immunity (Contact 4 kV, Air 8 kV).
- IEC 61000-4-3: Radiated Field Immunity (10 V/m at 80-1000 MHz).
- IEC 61000-4-4: Electrical Fast Transient/Burst Immunity (2 kV on I/O, DC power, and communication lines).
- IEC 61000-4-5: Surge Immunity (±2 kV on AC/DC power lines, ±1 kV on I/O/communication lines).
- IEC 61000-4-6: Conducted Disturbance Immunity (10 V from 150 kHz to 80 MHz).
- IEC 61000-4-8: Power Frequency Magnetic Field Immunity (30 A/m at 50-60 Hz).
- IEC 61000-4-11: Voltage Dips, Interruptions, and Variations Immunity.

Safety Certifications

UL/UL-C listed for Class I, Division 2, Groups A-D, and temperature code T4 enclosures.
Meets requirements for Class 2 as defined in NFPA No. 70 and CSA C22.1.
Complies with ATEX Directive 94/9/EC, certified for Zone 2 hazardous areas.

Environmental Specifications

Operating Temperature:
- Module: -20 to +60°C (-4 to +140°F).
- Termination Assembly: -20 to +70°C (-4 to +158°F).
Storage Temperature: -40 to +70°C (-40 to +158°F).
Humidity: 5 to 95% (non-condensing).
Vibration: 7.5 m/s² (0.75 g) from 5 to 500 Hz.
Contamination: Suitable for Class G3 (Harsh) environments as per ISA Standard S71.04.

Physical Specifications

Module Dimensions

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).
Weight: 284 g (10 oz).

Termination Assembly (TA) Dimensions

Compression: 216 mm (8.51 in), 320 g (0.7 lb).
Ring Lug: 250 mm (9.85 in), 454 g (1 lb).

Indicators and Input/Output Connections

Operational Status Indicators: 1 red and 1 green LED.
Communication Activity Indicators: 8 amber LEDs (one transmit and one receive per port).
I/O Cable Lengths:
- RS-232 Connection: Maximum 15 m (50 ft) with custom cables, or 13 m (40 ft) with standard Foxboro cables.
- RS-422/RS-485 Connection: Maximum 1200 m (3960 ft).
Termination Cables: LSZH material, available in lengths from 1 m to 5 m.

Part Numbers

Module: P0926GG.
Termination Assemblies:
- Compression: RH926GH (supersedes P0926GH).
- Ring Lug: P0926PA.

Contact Us

Phone: +86-15915488782
Email: uma@meloauto.com
WhatsApp: +8615915488782
Business Hours: 24/7 service
Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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