Foxboro FBM224 Modbus ® communication module

Phase setting: When the scanning rate is an integer multiple of the base period, specify the specific scanning period to distribute the communication load between the module and the device;

Transaction details: Function code, starting address of data, amount of data transmitted in a single transaction, up to 64 independent transaction configurations supported by a single device.

2. Control block support

The module is compatible with Foxboro standard DCI control block types, through Foxboro Evo Control Editors、I/A Series Configuration Component（IACC）、Integrated Control Configurator（ICC） Or FoxCAE ™ The software is configured in the control processor, and the control block interacts with Modbus slave devices for data read and write through address mapping. The supported types of control blocks are as follows:

Function description of control block type

BIN binary input

BINR redundant binary input

BOUT binary output

IIN integer input

IOUT integer output

PAKIN packaging input (multi digit point packaging)

PAKOUT packaging output (multi digit point packaging)

PLSOUT pulse output

RIN Real Input (Floating Point Type)

RINR redundant real number input

ROUT Real Output (Floating Point Type)

Core performance parameters and environmental adaptability

1. Electrical performance

Power requirements: Redundant 24V DC power supply, voltage range+5%~-10% (i.e. 21.6V~25.2V DC), maximum power consumption 7W, maximum heat dissipation 7W, compatible with Foxboro standard redundant power supply (such as FPS480-24);

Channel isolation: Galvanic isolation is used between each communication channel and ground, which can withstand 600V AC voltage for 1 minute without damage, effectively avoiding ground loop interference and high voltage intrusion;

Fieldbus communication: Communicate with FCM (fieldbus communication module) or control processor through redundant 2Mbps module fieldbus, support A/B dual path switching, automatically switch to another path when one path fails, ensuring communication continuity.

2. Environmental adaptability

(1) Temperature and humidity

Module operating temperature: -20 ℃~+60 ℃ (-4 ℉~+140 ℉);

Terminal component operating temperature: -20 ℃~+70 ℃ (-4 ℉~+158 ℉);

Storage temperature: -40 ℃~+70 ℃ (-40 ℉~+158 ℉);

Relative humidity: 5%~95% (non condensing), suitable for industrial environments with high humidity and large temperature differences.

(2) Anti interference and protection

Electromagnetic Compatibility (EMC): Complies with the European EMC Directive 2004/108/EC, EN61326:2013 Class A emission standards and industrial immunity levels, including:

Electrostatic discharge (ESD): Contact 4kV, air 8kV;

Radiated field immunity: 10V/m at frequencies of 80-1000MHz;

Electric fast transient/pulse group: I/O, DC power supply and communication line 2kV;

Surge immunity: ± 2kV for AC/DC power lines, ± 1kV for I/O and communication lines;

Pollution level: Compliant with ISA S71.04 Class G3 (harsh environment) standard, resistant to industrial dust, oil pollution and other pollution;

Vibration and impact: Can withstand vibrations of 7.5m/S ² (0.75g) and 5-500Hz, suitable for the vibration environment generated by industrial field equipment operation.

Security certification and compliance

The module is certified through multiple regions and standards to ensure compliant use in different countries/regions and hazardous environments

Specific standards and instructions for certification types

Electrical Safety (US Canada) UL/UL-C certification, applicable to Class I, Groups A-D; Division 2； T4 temperature group shell system; As an associated device, provide non flammable communication circuits for Class I, Groups A-D hazardous areas; Meets the Class 2 circuit requirements of the National Electrical Code (NFPA 70 Article 725) and the Canadian Electrical Code (CSA C22.1 Section 16)

European certification for Low Voltage Directive 2006/95/EC and Explosion proof Directive 94/9/EC; DEMKO certification for EEx nA IIC T4, suitable for Zone 2 hazardous areas, as an associated device providing non flammable on-site circuits for Zone 2, Group IIC potentially explosive environments

Environmental compliant terminal components (TA) and terminal cables comply with the EU RoHS Directive 2002/95/EC and revised 2011/65/EU, restricting the use of harmful substances such as lead and mercury

Electromagnetic compatibility complies with CISPR 11 Industrial, Scientific, and Medical (ISM) Radio Frequency Equipment Electromagnetic Disturbance Limits, IEC 61000 series immunity standards (static electricity, radiation, surge, etc.)

Typical application scenarios and topology configuration

1. Applicable industries and scenarios

Core industries: petrochemical, natural gas, power, water treatment, manufacturing (such as automobiles, electronics) and other industrial fields that require multi device interconnection;

Typical applications:

Data exchange between PLCs from different manufacturers and Foxboro systems (such as connecting equipment status data from third-party PLCs to the Foxboro operator interface);

Intelligent instruments (such as flow meters, pressure transmitters) data acquisition (reading instrument measurement values through Modbus RTU);