IC697CGR935-JB - Single Slot CPU

SPECIFICATIONS

Part No: IC697CGR935-JB
Manufacturer: General Electric
Function: Single Slot CPU
Operating Temperature: 0 to 60 deg C
Battery Shelf Life: 5 years at 20 deg C
Inputs and Outputs: 12K each (any mix)
Serial Ports: 3
Current Required: 3.1 Amps nominal
Series: Mark I and II
Repair: 3-7 Day
Availability: In Stock
Country of Manufacturer: United States (USA)

Functional Description

IC697CGR935-JB is a single-slot CPU developed by GE. It is a part of Mark I and II control system, specifically designed for CPU redundancy applications. This module is part of the redundant control system, where it plays a crucial role in managing fluctuating point calculations necessary for ensuring the uninterrupted operation of complex systems. 

Features and Control Methods

• The module supports two primary control methods: the GHS process and the GDB process. Both methods are implemented to enhance the flexibility and functionality of the control system.
• GHS Process (Global Hot Standby): This method uses multiple single bus networks with one redundant controller in each synchronized PLC. The redundancy ensures that if one controller fails, the other can take over without causing a system disruption.
• GDB Process (Global Distributed Bus): In this method, multiple I/O networks are employed with single or double buses in each synchronized PLC. This setup provides a distributed and robust network, allowing for seamless operations even if one bus or controller fails. Each control method is easily activated, making the system flexible and adaptable to varying operational needs. Both of these methods are designed to be intuitive and can be activated without difficulty, allowing users to quickly integrate them into their existing systems.

Memory and Program Handling

The module incorporates a dedicated onboard memory board designed to manage both program and data memory. This internal memory architecture ensures the CPU can execute control logic, store critical operational data, and maintain synchronization in redundancy scenarios without relying on external memory modules.

• Non-volatile memory ensures that control programs and configuration data are retained even during power loss.
• Built-in program memory enables faster startup times and eliminates the need for external memory cards or additional modules.
• The memory system is optimized for handling Real-time data acquisition,  Floating-point computations, Diagnostic logs and system parameters.
• Efficient memory partitioning supports independent task execution and fast failover synchronization in redundant CPU setups.

Remote Operation and Manual Control

• Remote Operation: Fully compatible with GE’s programming and monitoring software platforms (e.g., Proficy Machine Edition, Logicmaster 90-70). Can be remotely started, stopped, monitored, and reconfigured via network interfaces, allowing for centralized control in SCADA or distributed control system (DCS) environments. Supports secure communication and remote diagnostics for streamlined maintenance and real-time system management.
• Manual Control: Equipped with a three-position RUN/STOP/RESET switch on the front panel.
  • RUN: Initiates or continues the program cycle.
  • STOP: Halts CPU execution for maintenance or updates.
  • RESET: Reinitializes the CPU after fault conditions or configuration changes.

Status Monitoring and Diagnostics

• RUN: Indicates the CPU is actively executing the control program.
• STOP: Shows that the CPU is halted.
• FAULT: Alerts to internal errors or hardware faults.
• BATTERY LOW: Signals low backup battery voltage (if applicable).
• ACTIVE/IDLE STATUS: Identifies whether the CPU is in active or standby mode in a redundant configuration.

Installation and Setup Procedure

The installation of the module should be carried out following the instructions in the Programmable Controller Installation and Hot Standby CPU Redundancy Manual. This manual contains detailed guidance on proper module installation and configuration, ensuring optimal performance and system reliability. Here’s a step-by-step outline for installation:

• Battery Connection: First, ensure the battery is properly connected to one of the module's battery connectors. This is necessary to maintain the module's memory during power outages or resets.
• Key Switch Position: The key switch should be set to MEMORY PROTECT OFF. This allows the CPU to access memory for both reading and writing.
• Power Conditions: Ensure that there is no rack power when installing the module to prevent any electrical hazards or damage during the setup process.
• Slot Placement: Install the IC697CGR935 module into slot 1 of rack 0. Once installed, turn on the power to the rack.
• LED Behavior: After powering up the system, the top LED will start blinking, indicating that the module is powered on. Once the module completes its self-diagnostics, the top left LED will remain lit, while the second and third LEDs will turn off. The MEMORY PROTECT LED (the fourth LED) will also be off because the key switch is in the "off" position.

Programming and Operation

Once the module has passed its diagnostic checks and the LEDs indicate normal operation, the system is ready for programming. The CPU can be programmed regardless of the position of the key switch, providing flexibility in program development and modification. After programming the CPU, the toggle switch can be set to the appropriate operational mode for the system's intended use. The system can be easily switched between run and stop modes, offering versatility and control in various operational scenarios.

WOC is happy to assist you with any of your GE requirements. Please contact us by phone or email for pricing and availability on any parts and repairs.

FREQUENTLY ASKED QUESTIONS

What is IC697CGR935-JB?
It is a Single Slot CPU developed by GE.

Can the module be operated remotely?
Yes, the module can be operated remotely. It also includes a three-position RUN/STOP switch for manual operation if preferred. This allows for greater control, whether in automated systems or manual configurations.

What kind of memory does the module have?
The module comes with a memory board, which handles both data and program memory. This enables the module to operate independently, ensuring critical data and program instructions are always available for the redundancy system.

What is the process for programming the module?
Programming the module can be done regardless of the key switch position. Once the module passes the diagnostic phase, it is ready for programming. After programming is completed, you can toggle the switch to the desired operational mode. The system can then be switched between run and stop modes as needed.