GE IC697CPM925 90-70 Series Central Processing Unit Module

• Processor Performance: Equipped with an embedded 80486DX2 microprocessor, with a clock speed of 64MHz. The Boolean execution time for each Boolean function is 0.4 microseconds, featuring strong computing capability to quickly handle various logical operations and control tasks.
• Memory Configuration: Comes with 1MB battery-backed memory, powered by the IC697ACC771 lithium battery. The battery has a shelf life of 1 year at 20 degrees Celsius, and can retain memory for up to 6 months when the backplane is not powered, effectively preserving programs and data.
• I/O Capability: Supports 12K bytes of input and output (in any combination) as well as up to 8K of analog input and output, which can meet the processing requirements of digital and analog signals in various industrial control scenarios.
• Communication Interface: Equipped with an RS422/RS485 communication port supporting the SNP protocol, facilitating communication with other devices or modules for data transmission and system integration.
• Power Requirements: Input voltage is 5V DC, with a rated current of 3.3A.
• Operating Environment: With forced air cooling of 70 cubic feet per minute, the operating temperature range is 0 to 60 degrees Celsius; without forced air cooling, the operating temperature range is 0 to 40 degrees Celsius.
• Status Indication: Equipped with 3 LED status indicators, such as OK, RUN, and ENABLED indicators, which can visually display the working status of the module, facilitating fault diagnosis and system monitoring for users.
• Other Features: Supports floating-point mathematical operations, has memory protection function to prevent unnecessary access to the controller, and is equipped with a built-in calendar with a clock accuracy of 3.5 seconds per day and an internal timing accuracy of 0.01%.

• Self-diagnosis: When the module is powered on or at the start of each scanning cycle, it first conducts internal hardware and software checks to confirm whether the CPU, memory, I/O modules, etc., are working normally. If an error is detected, it will light up the fault indicator or adopt a preset error handling program, such as shutting down or safe output, to ensure the reliable operation of the system itself.
• Input sampling: The CPU reads the status of all actual physical input points connected to the input module, such as whether a button is pressed or a sensor detects an object, and reads these statuses as a “one-time snapshot” and stores them in the input image register. During a scanning cycle, the program uses the “static” status values in the input image register instead of the real-time changing status of physical input points.
• Program execution: Based on the data in the input image register, the CPU executes the control program stored in the user memory sequentially from top to bottom and left to right. During program execution, operations such as logical operations, mathematical operations, data comparison, timer timing, and counter counting are performed, and the running results are first written into the output image register. At this stage, the data in the output image register will be updated with program execution, but the status of physical output points has not yet changed.
• Output refreshing: The CPU transmits the final result status stored in the output image register to the output module at one time. The output module drives the actual physical devices with the received signal, such as lighting indicators, starting/stopping motors, etc., and only then does the status of physical output points change.
• Communication and data processing: The module handles internal “housekeeping” tasks, such as communicating with other devices, uploading/downloading programs or data, performing internal diagnostics, and updating the current values of timers and counters.

• Manufacturing industry: It can be used to control equipment such as CNC machine tools and automated production lines, realizing precise control of machine tool movement and processing parameters, as well as the automated operation of production line links such as material conveying and assembly.
• Energy industry: In power plants, it can be used to control the start/stop of generators, voltage regulation, power distribution, etc., and also for monitoring power equipment in substations, such as switch status control and electric quantity monitoring; it can also be applied in new energy fields, such as fan control in wind farms and photovoltaic panel tracking and power conversion control in solar power stations.
• Petrochemical industry: It can control various equipment such as reactors, pumps, and valves in chemical production processes, realizing precise regulation of process parameters such as temperature, pressure, and flow to ensure safe and stable operation of the production process. It can also be used for wellhead equipment control in oil extraction and monitoring of crude oil pipelines.
• Water treatment industry: It can be applied in sewage treatment plants to automatically control various links of sewage treatment such as pretreatment, biochemical treatment, and sedimentation filtration, monitor water quality parameters, and control the operation of equipment such as water pumps, fans, and dosing devices; it can also be used in processes such as water source intake, purification treatment, and water supply scheduling in waterworks.
• Municipal engineering: In urban rail transit, it can be used to control platform screen doors, elevators, lighting systems, etc.; in building automation, it can realize centralized monitoring and management of air conditioning systems, water supply and drainage systems, elevator control systems, etc., improving the intelligence level and energy utilization efficiency of buildings.