Cyclic Tasks - Omron CJ2 CPU UNIT SOFTWARE User Manual

5 Understanding Programming
Downloading and Uploading Individual Tasks
Individual program tasks can be uploaded and downloaded from the CX-Programmer.
CX-Programmer
Restrictions to Function Block Use
Individual tasks cannot be downloaded for programs containing function blocks (uploading is possi-
ble).
Restrictions to Using SFC Programs and ST Programs
Tasks to which SFC programs or ST programs are assigned cannot be uploaded or downloaded
individually.
5-2-2

Cyclic Tasks

Cyclic Tasks

Cyclic tasks are executed once per cycle in order starting with the lowest task number. Up to 128 tasks
can be used (cyclic task numbers 0 to 127). The tasks can be started by setting the Activated at the
start of operation Property using the CX-Programmer or by using Task Control Instructions. For infor-
mation on Task Control Instructions, refer to A-2 Instruction Execution Times and Number of Steps. If
extra cyclic tasks are used, a maximum of 384 cyclic tasks can be used.
Precautions for Correct Use Precautions for Correct Use
Do not use the Task Control Instructions (TKON(820) and TKOFF(821)) to control tasks contain-
ing SFC programs. Otherwise they will not execute normally.
5-14
Individual tasks (programs)
END
END
END
Download individual tasks (programs).
CJ-series
CJ2 CPU Unit Software User's Manual