SPECIFICATIONS
Part No.: IC697CPU731
Manufacturer: General Electric
Product Type: Expandable CPU Module
Availability: In Stock
Number of Slots: 1 (Single slot)
Current Required: 1.0 Amp
Number of Points: 512 inputs and outputs (any mix)
Serial Ports: One
Supports: IC660/IC661 I/O and IC697 I/O
Series: VersaMax
Functional Description
IC697CPU731 is an expandable CPU module developed by GE Fanuc. It is a robust 12 MHz Central Processing Unit (CPU) designed for use within a PLC (Programmable Logic Controller) rack. Equipped with 32 Kbytes of memory and powered by the 80C186 microprocessor, this CPU is built to control industrial processes, machinery, and systems in real-time, ensuring efficient and accurate material handling and system operations.
Installation
Proper installation of the CPU module is crucial for ensuring safe and reliable operation. Whether you are an OEM (Original Equipment Manufacturer), system integrator, or end user, it is your responsibility to follow the correct installation procedures to maintain the integrity of the Programmable Logic Controller (PLC) system. Detailed instructions are provided in the product manuals accompanying the equipment and PLC programming software.
Below is a step-by-step guide for the installation of the module:
- Review Installation Manuals: Before starting the installation process, consult the relevant installation manual shipped with your PLC programming software. These manuals provide comprehensive guidelines on installation, startup, and usage to ensure compliance with operational standards. If your PLC installation must adhere to specific standards such as FCC or CE Directives, additional guidelines for conformance will be included in the Installation Requirements for Conformance to Standards document, which is also provided with the software.
- Power Off the PLC System: Ensure the power to the PLC is turned off before beginning the installation. This is critical to avoid any damage to the components and to maintain safety during the installation process.
- Battery Connection: Connect the battery to one of the battery connectors on the module. The module has two battery connectors, and either can be used for this purpose.
- Set the Toggle Switch: Move the toggle switch on the module to the STOP position before proceeding with installation. This ensures the module is not in operation mode during the installation process.
- Slot Placement: Install the module into slot 1 of rack 0. This placement is essential for proper communication and operation within the PLC rack system.
- Power On the System: Once the module is securely installed, turn on the power to the PLC system.
- Module Power-Up and Diagnostics: Upon powering up, the top LED on the module should blink, indicating that the system is running the initial diagnostics. When the diagnostics complete successfully top LED will remain solid (ON), The second and third LEDs will turn off. This indicates that the module has passed the diagnostics and is ready for programming.
- Program the CPU: With the module ready, it can now be programmed. Once the program has been verified, you may adjust the toggle switch to the appropriate operation mode position, depending on the operational state you wish to configure.
- LED Indicators: The LED indicators on the module will display various statuses Toggle switch position, Memory protection status, State of the program. These LEDs provide real-time feedback on the operation and configuration of the module, aiding in troubleshooting and system monitoring. By following these steps and adhering to the installation manuals provided, the module can be safely and efficiently installed, ensuring optimal performance in industrial control applications. Always ensure that all installation procedures are performed in compliance with relevant safety and regulatory standards.
Programmer Connection
When configuring the CPU module, it is essential to establish proper connections for programming through either a parallel interface or a serial port. These connections allow the programmer to communicate with the CPU and upload or modify control programs efficiently.
- Parallel Interface (MS-DOS Programmer Only)
- For those using an MS-DOS-based programmer, the parallel interface provides a fast, direct connection for programming.
- To connect the programmer via a parallel interface:
- Use the top port connector located on the Bus Transmitter Module.
- This port serves as the communication link between the programmer and the CPU, enabling the transfer of programming data.
- Reference 2 in the product documentation contains further details about the programming functions specific to parallel connection usage. It is advisable to consult this reference for more detailed configuration settings and operational insights.
- 2. Serial Port Connection
- The module is equipped with a 15-pin D-connector for a serial port connection, providing a reliable communication method for modern programming environments.
- This port supports RS-485 compatible devices, allowing for serial communication between the CPU and programming equipment.
- To establish the connection:
- Connect the 15-pin D-connector to a Standard Serial COM port on the programming computer or workstation.
- Alternatively, it can connect to a Work Station Interface board, a specialized interface installed in the programming computer that enables more efficient serial communication.
- This port facilitates data exchange and programming commands over a serial connection, which is typically slower than parallel communication but more versatile and widely compatible with modern systems.
- 3. Programming with Serial Communications
- Serial communications are widely used for PLC programming, especially in scenarios where the programming computer lacks parallel interfaces or when programming over longer distances is required.
- For more detailed information on serial communications, consult the relevant references in the product manuals:
- Reference 1 covers the basic configurations for serial communication.
- Reference 2 provides additional details on serial programming functions.
- Reference 3 offers extended guidelines for advanced users who need to optimize or troubleshoot serial connections.
- Additional Considerations:
- Ensure that all communication settings on the programming software match the requirements of the selected interface (either parallel or serial).
- When using serial connections, it is important to verify the correct baud rate, data bits, parity, and stop bit settings to ensure smooth communication between the programmer and the CPU module.
Ethernet TCP/IP Programmer Connection
To connect to a programmer via an Ethernet TCP/IP network, an Ethernet Interface module must be installed in the PLC. Two module options are available:
- Ethernet Controller (IC697CMM741)
- Ethernet Interface (Type 2) (IC697CMM742)
These modules enable network-based communication between the PLC and the programming device. Before establishing the connection, you must configure the IP address of the Ethernet Interface module. The IP address must be unique within the network to prevent communication conflicts and ensure proper connectivity.
Once the IP address has been set, the programmer running Windows software can be connected to the PLC through the Ethernet Interface. This connection allows high-speed data transfer, remote monitoring, and control over the network, making it suitable for industrial environments where multiple devices need centralized programming.
System Configuration
The configuration of the IC697 CPU and associated I/O systems is performed using MS-DOS or Windows-based programming software. Unlike older systems, no DIP switches or jumpers are required for configuration.
It automatically verifies the actual module and rack configuration during power-up and at periodic intervals throughout operation. This automatic verification ensures that the physical configuration matches the programmed configuration. If there is a discrepancy between the two, the CPU’s alarm processor will identify the issue and trigger a fault response based on the configured settings. This streamlined configuration process eliminates manual adjustments and minimizes errors, providing a more reliable and efficient system setup. Detailed information on configuration functions can be found in Reference 1 of the system documentation.
Battery Installation and Maintenance
It requires a lithium battery (IC697 ACC701) to maintain program memory and data memory when power is removed. The battery also operates the system’s calendar clock.
For safe battery replacement:
- Install the new battery before removing the old one to avoid memory loss.
- If the battery is not replaced correctly, the PLC may lose its stored program and real-time clock data, potentially affecting system performance.
During power-up diagnostics, the system checks the battery’s health. If a low battery is detected, the Module OK LED (located at the top of the module) will fail to stay lit. This visual indicator serves as an early warning system, prompting users to replace the battery before a complete failure occurs. More detailed information on battery diagnostics and replacement can be found in Reference 2 of the product manual.
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 IC697CPU731?
It is an expandable CPU module developed by GE under VersaMax series.
What microprocessor does the module use?
It uses an 80C186 microprocessor running at 12 MHz, providing the necessary processing power for controlling complex industrial operations.
How much memory does the module have?
The module comes with 32 Kbytes of memory, which is used for storing programs and data required for controlling the PLC system.
What types of I/O modules does it support?
The module supports up to 8K analog I/O modules and is compatible with both discrete and analog modules from the IC697 family. This allows for flexible input and output configurations in various industrial applications.
