Parameter and Variable Storage

The S200 has two types of memory: non-volatile memory and RAM. S200 non-volatile memory (NV memory) is similar to disk memory in a personal computer in that it can be written to and read from and maintains its settings without power. The S200 memory RAM is temporary memory. When control power is applied, all NV parameter values are automatically copied from NV memory into S200 RAM memory. The S200 operates out of temporary memory; that is the temporary memory parameter values set the S200 configuration and adjustments.

S200 Tools configuration software changes S200 settings, which include both parameters and variables. In the Offline branches of S200 Tools configuration software, changes made to a setting are made only in the PC S200 Tools memory on the PC. Clicking the Download Drive button sends the values to the drive’s temporary memory. Clicking the Download NV button sends the values to the drive’s NV permanent memory. In the latter case the drive’s control power must be cycled to get the drive to load the values into active use. When downloading or uploading to the S200 from S200 Tools software, all drive settings are copied. It is not possible to upload or download only one parameter or variable.

In the online branch of S200 Tools, the Drive Setup screen of S200 Tools operates differently than in offline. Under the Drive Setup screen, any change to a parameter is automatically communicated to the drive's temporary memory. Once all the parameters are set you should use the File menu to do a file save on the PC to save the drive configuration (*.S2C). If a drive is connected, you can click the Download Drive or the Download NV buttons to send the parameter set into the drive.

In the online section of S200 Tools the Status screen allows a custom selection of NV Parameters and variables to be selected. This screen is useful for interactively making setup changes and to view drive status. When changes are made to an NV Parameter or a Variable in this screen, the value in the S200 Tools PC memory is automatically copied to the S200 RAM memory for that particular parameter. Clicking NV Save on the Status screen uploads the current state of the drive temporary RAM and downloads all these settings to the S200 non-volatile memory. This step should be done before power cycling the drive control power and losing the drive setup changes.

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