IC697CPX935 - Single-Slot PLC CPU

SPECIFICATIONS

Part No.: IC697CPX935
Manufacturer: General Electric
Product Type: Single-Slot PLC CPU
Module Type:Central Processing Unit
Number of Slots: 1 (Single slot)
Current Required: 3.1 Amps
Number of Points: 12K inputs and outputs (any mix)
Serial Ports: Three (RS-232 and RS-485)
Supports:IC660/IC661 I/O and IC697 I/O
Availability: In Stock
Series: VersaMax

Functional Description

IC697CPX935 is a Single-Slot PLC CPU developed by GE. It features three built-in serial ports, designed and manufactured by GE Automation and Controls. This CPU is capable of real-time control for various systems and utilizes the VMEC.1 format, enabling seamless communication with different smart option modules through the backplane mounted on the rack. The device can be operated either via a three-position run/stop control switch or by connecting to a computer running the appropriate software.

Features

• Powered by a 96MHz microprocessor, it performs floating-point calculations every 0.4 microseconds, offering exceptional processing speed and efficiency. It supports a flexible configuration with any combination of up to 12K I/O and 8K analog I/O.
• It is compatible with the entire IC697 family of discrete and analog I/O modules, as well as programmable and alphanumeric display coprocessors. Additionally, it supports IC660 and IC661 bus controller modules, link and LAN interface modules, and various communication modules, making it highly versatile and suitable for a wide range of applications.
• Equipped with a built-in memory board that features 1 Mbyte of battery-backed Fast CMOS RAM memory. This memory is used for storing user data, including program data, configuration settings, and register data. This provision ensures high-speed data access and security, even in the event of a power loss, thanks to its battery backup feature.
• The CPX935 includes 256K of non-volatile flash memory for additional storage of user data, such as programs, configurations, and register data. The use of this flash memory is optional, providing flexibility for users depending on their storage requirements and specific application needs.
• Employs non-volatile flash memory for storing its operating system firmware. This design allows for easy firmware updates without the need to disassemble the module or replace EPROM chips. Users can update the firmware by simply connecting a PC-compatible computer to the module’s serial port and using the included software from the firmware upgrade kit to perform the update. This feature simplifies maintenance and ensures the CPU is always running the latest firmware version.

Operation, Protection, and Module Status

The operation of the CPX935 module can be controlled through a three-position RUN/STOP switch or remotely via an attached programmer and programming software. The module’s program and configuration data can be secured with software passwords or manually protected using the memory protection keyswitch. When the keyswitch is in the "protected" position, changes to the program and configuration data can only be made by a programmer connected to the Bus Transmitter module.

The status of the CPU is clearly indicated by the seven green LEDs on the front of the module. These LEDs provide real-time feedback on the module’s operational state, such as whether the program is running, whether memory protection is enabled, and the status of serial port communication.

Operating Temperature and Cooling Requirements

For proper operation in ambient temperatures above 50°C (122°F), the CPX935 requires forced air cooling. It is recommended to use a fan capable of 70 CFM (including filters), installed beneath slot 1 of the rack containing the CPU. To ensure compatibility, fan assemblies such as ACC721, ACC724, and ACC744 can be ordered for direct mounting on the IC697 rack. Proper cooling is essential to prevent overheating and ensure stable operation, especially in environments where ambient temperatures are high.

Installation Instructions

Proper installation is critical to ensure safe and reliable operation of the PLC system. It is the responsibility of the OEM, system integrator, or end user to follow the installation guidelines provided in the product manuals. Detailed installation, startup, and usage instructions are included with the PLC equipment and should be referred to before proceeding with the setup.

If the installation must comply with specific standards, such as FCC or CE directives, refer to the "Installation Requirements for Conformance to Standards," which is also included with the PLC programming software. These guidelines ensure that the installation meets regulatory requirements for electromagnetic compatibility and safety.

Step-by-Step Installation Process

• Power Off: Ensure the rack power is off before starting the installation process.
• Connect the Battery: Connect the battery to one of the battery connectors on the module to provide power backup for memory storage.
• Position the Toggle Switch: Set the toggle switch to the STOP position for initial installation.Set the Keyswitch: Position the keyswitch in the Memory Protection OFF position for installation and configuration.
• Install the CPX935 Module: Insert the CPX935 module into slot 1 of rack 0 as indicated in the installation manual.
• Power On: Turn on the power to the system. The top left (OK) LED should blink as the module powers up. Once diagnostics complete successfully, the top left LED will remain on, indicating that the system is ready.
• LED Indicators: The second (RUN) and third (EN) LEDs will remain off initially. The fourth LED (MEM PROTECT) will also be off if the keyswitch is in the OFF position, indicating that memory protection is disabled.
• Program the CPU: After verifying the program, move the toggle switch to the appropriate operational mode. Options include:
  
  • RUN WITH OUTPUTS ENABLED
  • RUN WITH OUTPUTS DISABLED
  • STOP
• The seven LEDs on the front of the module provide a visual indication of the current operating mode, memory protection status, serial port activity, and the state of the program.

Programmer Connection and Parallel Programming

The CPX935 module supports parallel programming, allowing for the connection of a programmer to perform the necessary programming and configuration functions. This flexibility provides a convenient method for managing the system’s setup and adjustments without needing to switch out components or interrupt the ongoing operation of the system.

By following these guidelines, users can ensure that it is installed correctly and operates optimally within the specified temperature and configuration parameters.

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 IC697CPX935?
It is a Single-Slot PLC CPU developed by GE under the VersaMax series.

How is the module operated?
The device can be operated either via A three-position run/stop control switch, or By connecting to a computer running the appropriate programming software.

What modules are compatible with the module?
The module supports the entire IC697 family of discrete and analog I/O modules. It also supports programmable and alphanumeric display coprocessors, IC660 and IC661 bus controller modules, link and LAN interface modules, and various communication modules.

How does the module handle system communication?
The CPU uses VMEC.1 format for communication with different smart option modules via the backplane mounted on the rack, providing reliable and efficient data exchange.