Chapter 4. CPU module
4 - 12
3) Task program
(1) Function
•
In order to process internal/ external signal which occurs periodically or non-periodically, the task program
temporarily stop the operation of scan program and processes first the corresponding function
(2) Types
•
Task programs are classified into the three types as below.
4
Time driven task program : Up to 8 programs are applicable
4
Single (internal) task program : Up to 8 programs are applicable
4
Interrupt (external) task program : Up to 8 programs are applicable
•
Time driven task program
4
The program is executed by the time internal set before
•
Single (internal) task program
4
The corresponding program will be executed at the rising edge and on state of internal contact in the
program.
4
The detection of the start up condition will be executed after the scan program has been processed.
•
Interrupt (external) task program
4
The program is executed according to the external signal a input to the interrupt module
REMARK
1) Refer to section 4.3.3 task for details of task program.
2) For interrupt signal processing, the GM6 series use general digital input module instead of external
interrupt input module. Refer 4.3.3. task for details.
