Software Logging
Use Software Logging to add or edit software-based data logging for Modbus device types. This is intended for device types that do not have onboard data logging capabilities. You can also add software logging to a device type with onboard data logging to log additional measurements that are not logged by the device.
RECOMMENDATION: Use onboard data logging when possible. The data log timestamps for onboard data logs are more accurate than the timestamps for software data logging. Onboard data logging is also more reliable than software data logging since it does not depend on a network connection to the device.
The Software Logging link in Management Console opens the same Configure Logging and Calculation dialog that is available through the Device Type Editor.