Plc Processing Program; Plc Processing Program Level And Operation; High-Speed Processing Program And Main Processing Program - Mitsubishi Electric MELDAS C6 Programming Manual

2. PLC Processing Program

2.1 PLC Processing Program Level and Operation

2.1.1 High-speed processing program and main processing program

Table 2.1-1 explains the contents of users PLC processing level and Fig. 2.1-1 shows the timing chart.
Program name
High-speed processing
program
Main processing
program (ladder)
High-speed
processing
Main processing
(Note 1) The section from the END command to the next scan is done immediately as shown with
the X section. Note that the min. scan time will be 14.2ms.
Fig. 2.1-1 PLC processing program operation timing chart
2. PLC Processing Program
2.1 PLC Processing Program Level and Operation
Table 2.1-1 PLC processing level
Description (frequency, level, etc.)
This program starts periodically with a time interval of 7.1ms.
This program has the highest level as a program that starts periodically.
It is used in signal processing where high-speed processing is required.
The steps for high-speed processing program should be up to 150 steps.
Application example:
Position count control of turret and ATC magazine
This program runs constantly. When one ladder has been executed from
the head to END, the cycle starts again at the head.
7.1ms
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(Note 1)
This section is used by the controller.