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IC670GBI002

IC670GBI002 - Bus Interface Unit

IC670GBI002 - Bus Interface Unit IC670GBI002 - Bus Interface Unit

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SPECIFICATIONS

Part No.: IC670GBI002
Manufacturer: General Electric
Genius Datagram Communications: Yes
Mounting Type: Terminal block
Hot Swappable: Yes
Operating Temperature: 0 to 55 degrees Celsius
Storage Temperature: -40 to 85 degrees Celsius
Product Type: Bus Interface Unit
Availability: In Stock
Series: VersaMax

Functional Description

IC670GBI002 is a Bus Interface Unit developed by GE. The Genius Bus Interface Unit (BIU), developed by GE Fanuc, is a component in the Field Control system that enables effective communication between a host PLC (Programmable Logic Controller) or computer and GE Field Control I/O (Input/Output) devices. This module facilitates seamless integration and data exchange within systems, making it an essential part of the process control environment.

Key Features and Specifications

  • Power Compatibility: The BIU operates on a 24VDC power source. It features advanced internal overvoltage protection, ensuring safe operation under varying power conditions.
  • Scalability: The BIU supports up to four I/O terminal blocks, offering flexibility for expanding system configurations.
  • Noise Immunity: Built with enhanced noise immunity, the BIU is well-suited for environments prone to electrical interference.
  • Hot-Swap Support: Allows for hot insertion and removal of compatible I/O modules without powering down the system, provided certain terminal block requirements are met.

Integration with Field Control Systems

  • As part of the Field Control system, the BIU is key to achieving the efficient integration of distributed control systems (DCS) with field devices. The unit connects to a range of Genius I/O modules that monitor and control various industrial processes. With the module, operators can seamlessly exchange data between the PLC and remote I/O modules, enhancing control over automation systems and ensuring the accuracy and reliability of data being collected and processed from the field devices.
  • This interface unit simplifies system expansion and modification, allowing additional field devices to be added without disrupting ongoing operations. Its design is optimized for industrial environments, where ruggedness and reliability are paramount. The Genius Bus Interface Unit is engineered to handle the complexities of modern automation systems, ensuring that communication between field devices, controllers, and host systems remains efficient and error-free.

Installation Guidelines

The proper installation of the Genius Bus Interface Unit (BIU) is essential for ensuring reliable operation and maintaining the integrity of the system. Here are some critical installation guidelines that must be followed for successful integration.

Mounting on DIN Rail

The BIU terminal block must be mounted on a 7.5mm x 35mm DIN rail that has a conductive finish to ensure proper grounding. Proper mounting is crucial for stable operation, and the following considerations should be observed:

  • Spacing Requirements: To facilitate easy access to the wiring and ensure proper airflow, it is recommended to mount the unit at least 4.25 inches (10.80 cm) away from wireways or any other obstructions. This clearance helps maintain sufficient space for wire connections and reduces the risk of damage or overheating.
  • Grounding: The DIN rail must be properly grounded to ensure the unit’s optimal performance. Note that the BIU is not compatible with older “A version” I/O terminal blocks that lack a metal grounding strip. Proper grounding ensures safety and minimizes the risk of electrical interference.
  • Vibration Resistance: To increase the stability of the mounted rail, use screws to secure it in place, spaced approximately 6 inches (5.24 cm) apart. For added vibration resistance, it is recommended to drill mounting holes for the terminal block's mounting ears, ensuring a more secure and stable attachment to the rail.

Connecting I/O Terminal Blocks

The BIU supports connections to up to four I/O terminal blocks, which are integral to the system’s operation. Proper connection techniques ensure the integrity of signals and communication between devices:

  • Cable Connections: A short connection cable is provided for each terminal block, with optional 21-inch (0.53m) cables available for larger system configurations. These cables ensure reliable data transmission between the BIU and the connected devices.
  • Connection Positioning: It is essential to place the BIU at either the top or bottom of the I/O terminal blocks. Avoid positioning the BIU between terminal blocks, as this may disrupt communication or lead to connection issues. Ensuring proper positioning is key to maintaining the performance and stability of the system.
  • Firm Connections: Always verify that the cables are securely seated in their respective connections. Loose cables can result in signal loss, communication errors, or system malfunctions. Ensuring all connections are firm helps preserve the system’s overall reliability.

Wiring Instructions

Following correct wiring practices is critical for the safe and efficient operation of the BIU. The following guidelines should be adhered to during the wiring process:

  • Power Connections: The module requires a 24VDC power supply for standard operation. If using the model, the power supply options include 115VAC or 125VDC. For the DC supply on the IC670GBI102, polarity is not crucial.
  • Wire Specifications: Use AWG 14 (2.1mm²) wire or two AWG #16 (1.3mm²) wires per terminal. These wire sizes are suitable for maintaining safe current flow and are capable of handling the power requirements of the BIU. Ensure that the wires are copper conductors rated for at least 75oC (167oF), which ensures safe operation and durability in industrial environments.
  • Grounding: The ground terminal should be connected to a conductive panel using a maximum 4-inch length of AWG 14 or larger wire. This ensures that the grounding is effective and minimizes the risk of electrical faults. Star washers should be used to secure the ground connection, ensuring a strong and reliable connection to maintain ground integrity. This step is essential for ensuring the safety and operational stability of the system.

System Grounding and Noise Immunity

Proper grounding ensures system stability and noise immunity:

  • Tree-Style Grounding: Connect all ground conductors in a tree-like configuration, with branches leading to a central earth ground point.
  • Surge Protection: If surge immunity limits are exceeded, install local transient protection as recommended in the user manual.

Communications Bus Connections

It supports both single and redundant buses:

  • Bus A Connections: For conventional single bus installations.
  • Bus A and B Connections: For redundant (dual) bus setups.
  • Shield Connections:
    • Shield wires should be insulated and kept short (max 2 inches (5cm) exposed).
    • Connect Shield In and Shield Out wires properly to prevent interference.

Installing and Removing the BIU

Installation Steps:

  1. Position the BIU: Align the terminal block and firmly press the BIU into place.
  2. Secure with Screws: Tighten screws to a torque of 9 in/lbs to secure the unit.
  3. Check Connections: Verify all connections are secure and properly aligned.

Removal Steps:

  1. Loosen Screws: Fully disengage the retaining screws to avoid damage.
  2. Remove the BIU: Pull the module straight out to prevent damage to the connectors or pins.

Hot Insertion and Removal

The board and compatible I/O terminal blocks support hot swapping in non-hazardous locations:

  • External power to the module must be disconnected during the process.
  • This feature is supported only with terminal blocks 0CHS101, 102, or 103.
  • Avoid mixing incompatible terminal block types within the same I/O station.

Hazardous Location Guidelines

When operating in hazardous environments, observe the following:

  • Class I, Division 2 Compliance: Suitable for Groups A, B, C, and D or non-hazardous locations.
  • Power Shutdown: Ensure power is off before wiring or replacing modules.
  • Component Safety: Avoid substituting components as it may impair explosion hazard suitability.

Capabilities

  • High Data Exchange Capacity: The module is capable of handling a significant amount of data, with a maximum of 128 KB of input and 128 KB of output data exchanged during each scan. This high data throughput ensures that the module can efficiently manage complex control tasks in real-time industrial applications.
  • Genius Datagram Communication: The module supports Genius datagram communications, which allows for robust and flexible data transfer between devices on the Genius network. This feature is vital for maintaining reliable communication in distributed control systems.
  • Diagnostic Capabilities: The module is equipped with self-diagnostic features that monitor the health of connected I/O modules as well as the interface unit itself. Any diagnostic information is transmitted to the host device or a handheld monitor, enabling quick identification and resolution of potential issues. This proactive approach helps in maintaining system integrity and reducing downtime.

The WOC team is always available to help you with your Mark I and II requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IC670GBI002?
It is a Bus Interface Unit developed by GE under VersaMax series.

Does the unit perform any self-diagnostics?
Yes, it is equipped with diagnostic capabilities that monitor both connected I/O modules and the interface unit itself. It relays diagnostic information to the host device or a handheld monitor, helping to identify and address issues quickly.

Can the module be replaced without reconfiguring the I/O wiring?
Yes, the module supports hot insertion and removal, allowing it to be replaced without needing to reconfigure the I/O wiring or shut down the system. This feature minimizes downtime and simplifies maintenance.

What are the operating and storage temperature ranges?
The modules operate within a temperature range of 0 to 55 degrees Celsius and can be stored in temperatures ranging from -40 to 85 degrees Celsius. This wide temperature range makes it suitable for various industrial environments.