User manual

PTQ-PDPMV1 ♦ Quantum Platform Configuring the Processor with Concept 2.6
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 129 of 306
August 12, 2014
2 Select the SHOW EN/ENO checkbox
Create a BOOL variable and associate it to the EN input pin of the SETCRC
function block. If this variable has a value of 0 (OFF) the SETCRC function block
will be disabled. Therefore, further changes to the module configuration would
cause the module to be switched to STOP mode.
Note: If you use the EN bit to disable the function block, please remember that after a processor
download, the output variables might be reset and may cause a CRC mismatch. After a processor
download, you may need to re-enable the SETCRC function block once, to synchronize the CRCs
again.