Emerson P/N 400361-00 manual Updating to RAM, Update to RAM flowchart

values into the user configuration (First Arrow H followed by Arrow A, but data from H is not stored in PowerTools Pro file).

The table below shows an example of how these three options work:

	Value Before	Value After Download
	Download	Overwrite	Update	Keep
		Option	Option	Option
PowerTools
Pro Value for	150	150	500	150
Index.0.Vel
NVMValuefor	500	150	500	500
Index.0.Vel

4.4.4 Updating to RAM

The Update to RAM button can be used to send changes to the SM-EZMotion module without performing a complete download (symbolized by Arrow F in Figure 24). The Update to RAM button is found in the PowerTools Pro toolbar. This operation will send only those changes that have been made since the last Update to RAM or Device > Download to the SM-EZMotion module. The changes will take effect immediately upon clicking on the icon.

The changed parameters will be sent to the SM-EZMotion module without stopping motion or disabling the drive. Because of this, it is important to use caution when changing motion parameters while the motor is in motion.

The Update to RAM button saves the parameters only to RAM and not to Non-Volatile Memory (NVM). Therefore, if the system power is removed, any changes made using the Update to RAM button will be lost. In order to save changes to NVM, a full-download must be performed.

The flowchart in Figure 27 describes a typical process using the Update to RAM to make changes, and then downloading when complete to save changes to NVM.

Modify Parameter

Values

Click the

Update to RAM

icon

More		Perform a
Changes
Required?	NO	full Download
YES

Figure 27: Update to RAM flowchart

The Update to RAM button operates according to the following rules:

•If no parameters have been modified, the Update to RAM button will be disabled.

•If the user modifies a parameter that does not require a full download, the Update to RAM icon will become enabled.

•If while the icon is enabled, the user modifies a parameter that requires a full download, the Update to RAM icon will become disabled.

•When the user clicks on the Update to RAM icon, all the modified parameters are transmitted to the SM-EZMotion module. Once transmitted, the icon will become disabled again until another parameter is changed.

•If the user performs a full download while the button is enabled, the Update to RAM button will be disabled when the download is complete.

•If the user modifies parameters, and then disconnects (stops communications), the update button will be disabled, and the changes will not be sent.

4.4.5 PowerTools Pro Operation Preferences

To avoid getting all the option windows described above every time an Upload or Download is performed, the user can set certain preferences. To configure the preferences, select Options > Preferences > Ptools Operation from the Menu Bar. Figure 28 shows the Preferences Configuration window.

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