Scan Program Overview

Owned by CIMON (Unlicensed)
Jul 07, 2023
1 min read

Select File → New Program menu to create a new scan program.

Scan Program: Program that processes the regularly repeated signal for every scan.

Subroutine Program: Program composed of sub-routines that are called by "ECALL" command in the scan program.

Initialization Program (Cold): Program executed when the power is supplied or mode of the PLC is switched to Run Mode. It configures the initial data and initializes the peripheral or special module required to execute a scan program.

Initialization Program (Hot): If the power fails temporarily within the setting time and the Hot Restart function is enabled in the PLC Parameter, this program is executed to keep previous values before the power failure and to successively execute a scan program.

Periodic Interrupt Program: Program executed at the specified intervals.