1797-BIC Allen-Bradley Rockwell Flex Ex Bus Isolator

Product parameters

General parameters

Module type: Flex Ex Bus Isolator Module

Function: It IS used to interconnect the standard Flex I/O module with the Intrinsically Safe (IS) Flex Ex module to maintain the intrinsically safe integrity of the same I/O group

Number of supported modules: Up to 8 Flex Ex I/O modules are supported at most

Power supply requirements:

Input voltage: 18-32V DC

Current consumption: 150 mA @ 24V DC

Power consumption: Maximum 2.5W

Output power supply: 5.75V DC (provided to the Flex Ex module)

Isolation

Provide electrical isolation from Flexbus to Flexbus (in compliance with DIN EN 60079-11 standard)

Provide electrical isolation from the Flexbus to the Slave Side

Installation method: DIN rail or panel installation

Protection grade: IP20 (For indoor use, protected from water and dust)

Operating temperature: -20°C to 70°C

Storage temperature: -40°C to 85°C

Relative humidity: 5% to 95% (non-condensing)

Connection cable: Supports 1794-CE1 (up to 0.3m) and 1794-CE3 (up to 1m) cables

Certification:

North America: Class I Division 1 & 2, Groups A-D; Class I Zone 1 & 2, Groups IIC, IIB, IIA

Europe: Complies with EN 50020 standard and is applicable to hazardous areas of Zone 0, 1, 2, 21, 22

Others: C-TICK, CE, CUL, KC, MARINE, NRTL, UL

Physical and electrical characteristics

Terminal torque: 7-9 inches - pounds (Ensure the correct torque when wiring)

Power indicator: The module is equipped with a status indicator light for easy diagnosis

Function

Intrinsically safe isolation

Provide electrical isolation between the standard Flex I/O module and the Flex Ex module to ensure that the intrinsically safe circuit complies with the safety requirements of hazardous areas (such as EN 50020 and DIN EN 60079-11).

Prevent non-intrinsically safe signals from passing through the Flex Ex backplane to protect system integrity.

Module interconnection

Standard Flex I/O modules and Flex Ex modules are allowed to coexist on the same DIN rail and be connected to the same adapter (such as the 1797-ACNR15 ControlNet adapter), supporting hybrid system configurations.

Support up to 8 Flex Ex I/O modules to expand the system capacity.

Compatibility

Supports protocols such as ControlNet, DeviceNet, EtherNet/IP, etc. (via adapter).

Compatible with controllers such as FlexLogix and ControlLogix.

Safety design

It must be installed in a safe area or Zone 2 area. When connected to intrinsically safe circuits, relevant regulations (such as German DIN VDE 0165) must be followed.

Power-off/power-on should be synchronized with the adapter to avoid damage or safety risks.

Installation and maintenance

Supports DIN rail installation and is equipped with a locking mechanism to meet the requirements of shock resistance and vibration resistance (DIN rail lock is required).

It is equipped with a removable power connector and a backplane connector for easy installation and maintenance.

Application scenarios

Petrochemical and oil and gas industry: In Class I Zone 0, 1, 2 or European Zone 0, 1, 2, 21, 22 hazardous areas, connect intrinsically safe devices (such as sensors, actuators) to standard Flex I/O systems to ensure safety and compliance.

Chemical engineering and pharmaceuticals: Used in corrosive or explosive gas environments, it connects NAMUR sensors or intrinsically safe I/O modules to monitor and control chemical reaction processes.

Distributed control system: In large factories, it serves as the interface for intrinsically safe I/O systems, connecting equipment in remote hazardous areas to the central control system.

Hybrid I/O system: In scenarios where both standard Flex I/O and Flex Ex modules need to be used simultaneously, it provides isolation and interconnection functions to optimize the system design.

Automation of hazardous environments: Applicable to scenarios requiring intrinsically safe certification, such as mines, oil fields or dust environments (Class II/III), to ensure the safe operation of equipment.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

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