The SCADAPack Controller Logic Status module reads the Ladder Logic Application status from the RAM and FLASH memory and then assigns an integer value to two input registers (Modbus register 30000). The input registers are continuously updated as the current application status changes. The table below outlines the status for each of the input registers.
One key take away is that there must at least a logic before Controller Logic Status module starts working. The vlog demo outlines this.