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- IC697CHS791
- 9-Slot Front Rack Unit
- USA
- 283 × 483 × 190 mm
- 4.39 kg
- Xiamen, China
- New & In Stock
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Product Overview
The GE IC697CHS791 9-Slot Front Rack Unit is a modular rack assembly designed for the GE Fanuc Series 90-70 programmable controller platform. It provides a structured mounting and backplane environment for compatible Series 90-70 PLC processors, I/O modules, communication modules, and other system hardware.
The IC697CHS791 is a 9-slot front rack unit, providing a compact hardware platform for Series 90-70 control systems that do not require a larger rack configuration. Its front-access design can simplify module installation, inspection, wiring access, and maintenance within an appropriately designed control cabinet.
The rack itself is not a PLC processor and does not execute user application logic. Instead, it provides the mechanical support and electrical backplane connections required for the installed modules to operate as an integrated control system.
In a typical configuration, the rack works together with a compatible power supply, CPU module, digital or analog I/O modules, communication interfaces, and other Series 90-70 components.
The specified dimensions of the IC697CHS791 are approximately 283 × 483 × 190 mm, while the specified weight is approximately 4.39 kg.
Its compact 9-slot configuration makes the IC697CHS791 suitable for industrial automation systems where a modular Series 90-70 architecture is required without the physical requirements of a larger rack.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | GE Fanuc / GE |
| Product Family | Series 90-70 |
| Model | IC697CHS791 |
| Product Type | 9-Slot Front Rack Unit |
| Rack Configuration | 9-Slot |
| Mounting Type | Front Mount |
| Architecture | Series 90-70 Modular PLC |
| Backplane | Series 90-70 System Backplane |
| Number of Slots | 9 |
| Module Support | Compatible Series 90-70 Modules |
| CPU Support | Compatible Series 90-70 CPU Modules |
| I/O Support | Compatible Digital and Analog I/O Modules |
| Communication Support | Compatible Communication Modules |
| Installation | Industrial Control Cabinet |
| Dimensions | 283 × 483 × 190 mm |
| Weight | 4.39 kg |
| System Function | Module mounting and backplane interconnection |
| Power Supply | Compatible Series 90-70 Power Supply |
| Application | Industrial Automation and Machine Control |
| Maintenance | Modular Hardware Replacement |
| Environment | Industrial Control Environment |
Function and Working Principle
The primary function of the IC697CHS791 is to provide the rack structure and backplane infrastructure required for compatible Series 90-70 PLC modules.
The rack itself does not execute control programs. Instead, it provides the electrical and mechanical environment in which the CPU, I/O, communication, and other modules can operate together.
A simplified system architecture is:
Power Supply → IC697CHS791 Backplane → CPU / I/O / Communication Modules → Field Equipment
The power supply provides the necessary operating power to the rack and installed modules.
The CPU module executes the PLC control program. It receives process information through input modules and uses the programmed logic to determine the required control response.
Digital input modules can receive ON/OFF signals from switches, proximity sensors, limit switches, and other discrete devices.
Analog input modules can receive continuously varying process signals such as temperature, pressure, flow, and level measurements.
The CPU processes these signals and sends control commands through output modules.
Digital output modules can control relays, contactors, solenoids, motor starters, and other discrete devices.
Analog output modules can provide variable control signals to compatible field equipment.
Communication modules can connect the PLC system with operator interfaces, supervisory systems, other controllers, or industrial communication networks.
The IC697CHS791 provides the common rack infrastructure that allows these modules to operate as part of one integrated control system.
Role in Industrial Control Systems
The IC697CHS791 plays a central hardware-integration role in a Series 90-70 PLC architecture.
A typical control sequence is:
Field Sensors → Input Modules → CPU → Output Modules → Actuators
The rack provides the backplane connection between the modules involved in this process.
Its primary roles include:
- Mounting PLC modules
- Providing backplane interconnection
- Supporting system power distribution
- Organizing CPU and I/O hardware
- Supporting communication interfaces
- Providing modular system architecture
- Simplifying module replacement
- Supporting cabinet integration
- Providing a compact 9-slot configuration
The front rack configuration can be useful in installations where service personnel need convenient access to the installed modules.
For maintenance applications, modular rack construction also makes it possible to troubleshoot individual hardware components rather than replacing an entire control system.
Industrial Applications
Manufacturing Automation
The IC697CHS791 can be used in manufacturing systems where a compact Series 90-70 PLC configuration is required.
Applications can include:
- Assembly lines
- Packaging equipment
- Production machinery
- Conveyor systems
- Automated inspection
- Machine sequencing
Machine Control
OEM and industrial machines often require a combination of CPU, digital I/O, analog I/O, and communication modules.
The 9-slot rack provides a centralized platform for integrating these components.
Process Control
Process-control systems can use combinations of analog and digital signals to monitor and control industrial processes.
The IC697CHS791 can provide the rack infrastructure for suitable Series 90-70 configurations.
Material Handling
Material-handling systems such as conveyors, sorting machines, transfer systems, and automated storage equipment can use modular PLC architectures.
The rack provides a platform for integrating the required processor, I/O, and communication hardware.
Water and Wastewater Systems
Water-treatment equipment may require PLC control of pumps, valves, motors, and monitoring instruments.
A Series 90-70 system installed in the IC697CHS791 can provide the required modular control architecture when appropriately configured.
Utility Systems
Industrial utility equipment can use PLCs for monitoring and controlling mechanical and electrical processes.
The rack can form part of such a control system when compatible modules are selected.
OEM Automation
Machine builders can use the IC697CHS791 in legacy Series 90-70 control architectures where a compact front-access rack is appropriate.
Installation and System Integration
Correct installation is essential because the IC697CHS791 provides the physical and electrical foundation for the complete PLC system.
Before installation, engineers should verify:
- Rack model
- Mounting configuration
- Number of required modules
- CPU compatibility
- Power supply requirements
- I/O requirements
- Communication requirements
- Cabinet dimensions
- Grounding
- Ventilation
- Wiring
- Maintenance access
- Future expansion requirements
Typical Installation Procedure
- De-energize the control cabinet.
- Confirm the IC697CHS791 rack model.
- Verify the required Series 90-70 system configuration.
- Prepare the front mounting location.
- Secure the rack to the cabinet structure.
- Establish the appropriate grounding connection.
- Install the compatible power supply.
- Install the CPU module.
- Install the required digital and analog I/O modules.
- Install compatible communication modules.
- Confirm that each module is properly seated.
- Connect field wiring.
- Connect communication cables.
- Verify power connections.
- Check grounding and cable routing.
- Apply system power.
- Check module status indicators.
- Verify CPU operation.
- Test I/O channels.
- Verify communication functions.
- Perform complete system commissioning.
Adequate clearance should be maintained around the rack to allow appropriate airflow and service access.
When the PLC cabinet contains motors, variable frequency drives, contactors, or other equipment that generates electromagnetic interference, signal and power wiring should be routed appropriately to reduce potential interference.
Rack Capacity and System Planning
The IC697CHS791 provides a 9-slot rack configuration, making module planning an important part of system design.
Before installation, the engineer should determine the exact number of modules required by the application.
A compact system could contain:
Power Supply + CPU + Digital Input + Digital Output + Analog Input + Communication Module
The actual configuration depends on the control process.
A machine-control application may require several digital I/O modules, while a process-control system may require a larger number of analog channels.
Communication requirements should also be considered when determining the available rack capacity.
If future expansion is expected, engineers should evaluate whether the available rack positions are sufficient or whether an expansion architecture will be required.
This approach can help avoid unnecessary hardware changes when additional I/O or communication functions are added later.
Compatible System Components
The IC697CHS791 can operate as part of a complete Series 90-70 PLC system using compatible hardware.
| Component | Function |
|---|---|
| Series 90-70 CPU Module | Executes PLC application logic |
| Series 90-70 Power Supply | Provides system operating power |
| Digital Input Module | Receives discrete field signals |
| Digital Output Module | Controls discrete field devices |
| Analog Input Module | Measures analog process values |
| Analog Output Module | Provides analog control signals |
| Communication Module | Industrial network communication |
| Bus Interface Module | Network and system connectivity |
| Specialty Module | Application-specific control functions |
| Programming Computer | PLC programming and configuration |
| HMI | Operator monitoring and control |
| Terminal Blocks | Field wiring interface |
| Communication Cables | Data transmission |
| Field Sensors | Process measurement |
| Actuators | Physical process control |
The exact combination of modules should be selected according to the application and verified against the compatibility requirements of the existing Series 90-70 system.
Recommended Alternative Models
The following GE Series 90-70 rack models may be considered for similar industrial automation applications.
| Model | Type | Key Feature | Typical Application |
|---|---|---|---|
| IC697CHS750 | 5-Slot Rear I/O Rack | Compact rack configuration | Small PLC Systems |
| IC697CHS770 | Redundant Rack Unit | Redundant system architecture | High-Availability Control |
| IC697CHS771 | VME Integrator Rack Mount | VME-based module integration | PLC + VME Systems |
| IC697CHS782 | VME Integrator Rack | VME hardware integration | Specialized PLC Systems |
| IC697CHS783 | VME Integrator Rack | VME-based modular configuration | PLC + VME Systems |
| IC697CHS790 | 9-Slot Rear Rack Mount | 9-slot rear rack configuration | Medium PLC Systems |
| IC697CHS791 | 9-Slot Front Rack Unit | Front-mounted 9-slot architecture | Compact PLC Systems |
The IC697CHS790 is a particularly relevant alternative when a 9-slot Series 90-70 rack is required but the installation calls for a rear-mounted configuration.
The IC697CHS750 may be considered for smaller systems requiring a more compact rack arrangement.
The IC697CHS770 is intended for applications involving redundant control architectures rather than standard compact rack installations.
The IC697CHS771, IC697CHS782, and IC697CHS783 are more appropriate when integration with compatible VME hardware is required.
When replacing an IC697CHS791, engineers should compare the physical mounting arrangement, rack capacity, backplane compatibility, power supply, installed CPU and I/O modules, cabinet layout, and expansion requirements.
Key Advantages
- Designed for GE Fanuc Series 90-70 PLC systems
- 9-slot rack configuration
- Front-mounted installation
- Provides a common backplane interface
- Supports compatible Series 90-70 CPU modules
- Supports digital I/O modules
- Supports analog I/O modules
- Supports communication modules
- Provides modular hardware architecture
- Compact configuration for industrial control systems
- Convenient front access for module servicing
- Supports centralized PLC hardware organization
- Simplifies module-level maintenance
- Suitable for manufacturing automation
- Suitable for machine control
- Suitable for process-control applications
- Suitable for material-handling systems
- Suitable for utility applications
- Suitable for OEM automation systems
- Dimensions of approximately 283 × 483 × 190 mm
- Approximate weight of 4.39 kg
Technical FAQs
What is the GE IC697CHS791?
The IC697CHS791 is a 9-Slot Front Rack Unit designed for compatible GE Fanuc Series 90-70 PLC systems. It provides the physical mounting and backplane infrastructure required for the system’s PLC modules.
Is the IC697CHS791 a CPU?
No. The IC697CHS791 is a rack assembly rather than a processor. A compatible Series 90-70 CPU module is required for PLC program execution.
How many slots does the IC697CHS791 provide?
The IC697CHS791 provides a 9-slot rack configuration for compatible Series 90-70 modules.
What are the dimensions of the IC697CHS791?
The specified dimensions are approximately 283 × 483 × 190 mm.
How much does the IC697CHS791 weigh?
The specified weight is approximately 4.39 kg.
What is the main function of the IC697CHS791?
Its primary function is to provide a front-mounted rack and backplane platform for integrating compatible Series 90-70 CPU, I/O, communication, and specialty modules.
Can a CPU be installed in the IC697CHS791?
Yes. A compatible Series 90-70 CPU module can be installed as part of the complete control-system configuration.
Can I/O modules be installed?
Yes. Compatible digital and analog I/O modules can be installed according to the required control architecture.
Can communication modules be installed?
Yes. Compatible Series 90-70 communication modules can be integrated when required by the system design.
Is the IC697CHS791 suitable for industrial automation?
Yes. It can form part of control systems used in manufacturing, machine automation, process control, material handling, utilities, and OEM machinery.
What is the difference between IC697CHS790 and IC697CHS791?
Both models provide a 9-slot Series 90-70 rack configuration. The key distinction is their mounting arrangement: the IC697CHS790 is specified as a rear rack mount, while the IC697CHS791 is specified as a front rack unit.
Does the IC697CHS791 execute PLC logic?
No. PLC logic is executed by the installed CPU module. The rack provides the mounting structure and backplane infrastructure required by the CPU and other modules.
Does the IC697CHS791 require a separate power supply?
Yes. A compatible Series 90-70 power supply is required as part of the complete PLC system configuration.
What should be checked before replacing an IC697CHS791?
Engineers should verify the rack type, mounting arrangement, module count, CPU compatibility, power supply, I/O configuration, communication requirements, cabinet dimensions, grounding, cooling, and overall Series 90-70 system architecture.
Conclusion
The GE IC697CHS791 9-Slot Front Rack Unit is a modular rack component designed for compatible GE Fanuc Series 90-70 PLC systems. It provides the physical structure and backplane infrastructure required to integrate a CPU, power supply, I/O modules, communication interfaces, and other compatible PLC hardware.
With specified dimensions of 283 × 483 × 190 mm and an approximate weight of 4.39 kg, the IC697CHS791 provides a compact 9-slot configuration for industrial control applications.
Its front-mounted design can provide convenient access to installed modules during system inspection, maintenance, and replacement. This makes it a practical option for suitable control cabinets where front-side hardware access is preferred.
The IC697CHS791 can form part of manufacturing automation, machine control, process-control, material-handling, utility, and OEM automation systems. Its modular architecture allows engineers to configure the PLC system according to the required combination of CPU, I/O, communication, and specialty functions.
For replacement projects, the rack should be evaluated as part of the complete Series 90-70 control architecture. Engineers should verify mounting configuration, module compatibility, CPU type, power supply capacity, I/O requirements, communication hardware, cabinet dimensions, grounding, cooling, and future expansion requirements.
When correctly integrated with compatible Series 90-70 components, the GE IC697CHS791 provides a compact and organized platform for maintaining and operating legacy industrial PLC control systems.