Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 198)

Publication 1758-UM002D-EN-P - October 2010
198 DataSite Flow Configuration Utility (DS FloConfig)
Scan Time
Scan time refers to the read-write time interval of a scan block. You can use
the trigger scan function for COM port by programming the function block
COM_MSG in DataSite Workbench.
The following units of time are available. Note that ms represents milliseconds,
s seconds, m minutes, and h hours:
• 50 ms
• 500 ms
• 5 s
• 50 s
• 5 m
• 50 m
• 5 h
• 50 h
The scan time is equal to the value multiplied by the unit selected. For
example, if the value entered is "3" and the unit selected is "500 ms", then the
scan time is 3 x 500 ms = 1500 ms as shown in the following dialog box. This
means that the current scan block will be executed every 1500 ms.
Scanning starts when the DataSite controller is powered, and it continues
according to the scan time you have set.
Master Register
This is the start address of the register on the DataSite controller. Data is saved
into the master register starting from this address. The address range is
determined by the signal type.