ProSoft Technology MVI46-PDPMV1 - Manual (Page 45)

MVI46-PDPMV1 ♦ SLC Platform Configuring the MVI46-PDPMV1 Module
PROFIBUS DPV1 Master User Manual
ProSoft Technology, Inc. Page 45 of 160
March 25, 2011
2.3.3 Calculating the Checksums
The checksum (CRC) values are calculated from the PROFIBUS configuration
data, and compare the contents of the configuration file in the module with the
value reported by the processor. The checksum (CRC) value allows the
processor to verify that the configuration file is valid, and has not changed since
the last time the configuration file was imported to the processor. Any change to
the contents of the configuration file in either location changes the unique
numeric CRC value for the file.
If the checksum values do not match, the APP STATUS light illuminates on the
module.
1 In the PDPMV1 PROFIBUS Master Setup dialog box, click the Calculate
Checksums button.
2 Make a note of the checksum values so that you can enter them later if
prompted.
2.3.4 Printing the Processor Network Memory Map
The Processor Memory Map dialog box uses the information about your
PROFIBUS Master and slaves to display the data types you configured. You will
need this information to determine the memory areas your application will use in
the SLC processor.