Yaskawa DeviceNet Option Card CM05x - Manual (Page 43)

Drive Operation on DeviceNet 7-2
Data Storage of the DeviceNet Option Board
The Drive with a DeviceNet Option Board stores data in four locations:
• Active RAM memory on the Drive
• Inactive RAM memory on the Drive
• EEPROM memory on the Drive
• EEPROM memory on the DeviceNet Option Board
Data held in RAM memory, both Active and Inactive, is “Volatile”. Data held in Volatile memory will be lost when
power is removed from the Drive.
Data held in Drive EEPROM and Interface EEPROM memory is “Non-Volatile”. Data held in Non-Volatile
memory will be retained when power is removed from the Drive.
The following table shows the memory locations used for the data available over the DeviceNet network.
Data Type Memory Type
Drive Runtime Commands
Run/Stop
Frequency Reference
Drive RAM
Drive Runtime Status and Diagnostics
Run/Stop Status
Frequency Output
Current Output
Fault Diagnostics
Drive RAM
Drive Application Parameters
A1-00 through o3-02
Drive EEPROM
& Drive RAM
DeviceNet Network Parameters
Polled Consuming Assembly
Polled Producing Assembly
Motor Nameplate Data
Option Board
EEPROM