ProSoft Technology PTQ-PDPMV1 - Manual (Page 68)

Configuring the Processor with Unity Pro PTQ-PDPMV1 ♦ Quantum Platform
User Manual PROFIBUS DP Master Network Interface Module for Quantum
Page 68 of 306 ProSoft Technology, Inc.
August 12, 2014
To calculate checksums
1 On the PDPMV1 PROFIBUS Master Setup dialog box, click the C ALCULATE
C HECKSUMS button.
Notice the NEW checksums for the module and PROFIBUS appear.
Note: The module checksum will change when parameters such as 3X or 4X starting address are
changed. The PROFIBUS checksum will change if a network parameter is changed.
HSBY Note: For Hot Standby application, if you use the Non-Transfer parameter, the module
expects the CRC to be taken from the offset you provided, which must match the offset you
entered in the processor program.
The CRC value is provided in the XSY file exported by ProSoft Configuration
Builder, as shown in the following illustration.
If the Non-Transfer parameter is set to 0 (not used), the CRC is provided in
the PTQPDPMV1HSBY_StatOut area, as shown in the following illustration.
2 If the CRC values do not match, copy the PROFIBUS checksum by
highlighting the text and right-clicking to C OPY .