Digital guide

You are here:

AEG M907-000 Modicon 900 Series Memory Module

  • Product Introduction: This is a dedicated non-volatile memory module for the AEG Modicon 900 series PLC CPU modules, used to store user control programs, system configuration parameters, and important process data. It adopts advanced EEPROM and battery-backed RAM dual memory design, ensuring that the stored data will not be lost for a long time even when the power is off, and is an important functional module for the PLC system to realize program storage and data retention.
  • Technical Specifications:
    • Memory Type: 512 KB EEPROM (for program storage) + 256 KB battery-backed RAM (for data storage).
    • EEPROM Erase/Write Times: ≥100,000 times; Data Retention Time: ≥10 years (without power supply).
    • RAM Battery Type: Lithium battery, built-in, battery life ≥5 years (at 25°C).
    • Data Transmission Interface: Parallel interface, compatible with Modicon 900 series CPU backplane bus, data transmission rate up to 1 Mbps.

Detailed content

    • Programming Interface: Supports online program download and upload through PLC programming software, supports program editing and modification.
    • Operating Temperature: -25°C to +70°C; Storage Temperature: -40°C to +85°C.
    • Protection Rating: IP20; Dimensions: 60mm × 160mm × 50mm (W×H×D); Weight: 0.3 kg.
    • Mounting: Plug-in installation on the CPU module or dedicated memory slot of the PLC chassis, hot swappable.
  • Functional Features:
    • The dual memory design separates program storage and data storage, EEPROM is used for long-term storage of fixed programs and parameters, and battery-backed RAM is used for real-time storage of variable process data, improving the reliability and flexibility of data storage.
    • The EEPROM has a high erase/write life and long data retention time, which can meet the long-term use requirements of industrial control systems without frequent memory replacement.
    • The built-in lithium battery of the RAM has a long service life, and the battery status can be monitored in real time through the PLC system, and an alarm is issued when the battery power is low, reminding the user to replace the battery in time.
    • Supports online program and data backup, which can back up the programs and parameters in the memory module to the upper computer or external storage device, preventing data loss due to module failure.
    • The plug-in hot swap design allows the memory module to be replaced without shutting down the PLC system, and the replaced module can be used for program copying and data analysis, improving the maintainability of the system.
    • Built-in data error checking and correction (ECC) function, which can automatically detect and correct minor data errors during data storage and transmission, ensuring the accuracy and integrity of the stored data.
    • The memory module has a compact structure and small size, which does not occupy additional installation space of the PLC chassis, and is suitable for the compact design of industrial control cabinets.
  • Application Scenarios: It is a standard configuration module for AEG Modicon 900 series PLC CPU modules, widely used in industrial control systems such as petrochemical process control, metallurgical factory automation, municipal water treatment equipment, and building energy management systems. It is especially suitable for industrial occasions that require long-term retention of control programs and important process data, such as continuous production processes that cannot be shut down for a long time, and control systems that require historical data recording and traceability, and can also be used for program copying and system debugging of Modicon 900 series PLC systems.

You may also like