Applies To:
  • CitectSCADA 1.00 1.01 1.10 1.11 1.20 2.00 2.01 3.00

Question: Does the ReRead() function have any effect on global cicode variables? 

The function ReRead() has no effect on global cicode variables. This function will force any PLC variables to be re-read from the PLCs.

Common causes of problems with ReRead() are using the TaskNew() function to start a function. When this function is used the function can be called without first requesting data from the PLC. In this case a ReRead() would read the PLC variables.