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1255
Task Control Instructions
Section 3-34
3-34 Task Control Instructions
This section describes instructions used to control tasks.
3-34-1 TASK ON: TKON(820)
Purpose
Makes the specified task executable. Also, causes an interrupt task to operate
as an extra cyclic task. (Extra cyclic tasks are supported by CS1-H, CJ1-H,
and CJ1M CPU Units only.)
Ladder Symbol
Variations
Applicable Program Areas
Operands
N: Task number
The allowed range for N depends on the kind of task being specified.
• Cyclic tasks:
N must be a constant between 0 and 31 decimal. (Values 0 to 31 specify
cyclic tasks 0 to 31.)
• Extra cyclic tasks (CS1-H, CJ1-H, CJ1M, and CS1D CPU Units only):
N must be a constant between 8000 and 8255 decimal. (Values 8000 to
8255 specify extra cyclic tasks 0 to 255.)
Operand Specifications
Instruction
Mnemonic
Function code
Page
TASK ON
TKON
820
1255
TASK OFF
TKOF
821
1258
N
TKON(820)
N
: Task number
Variations
Executed Each Cycle for ON Condition
TKON(820)
Executed Once for Upward Differentiation
@TKON(820)
Executed Once for Downward Differentiation
Not supported.
Immediate Refreshing Specification
Not supported.
Block program areas
Step program areas
Subroutines
Interrupt tasks
OK
OK
OK
Not allowed
Area
N
CIO Area
---
Work Area
---
Holding Bit Area
---
Auxiliary Bit Area
---
Timer Area
---
Counter Area
---
DM Area
---
EM Area without bank
---
EM Area with bank
---
Indirect DM/EM
addresses in binary
---
Indirect DM/EM
addresses in BCD
---
Содержание SYSMAC CS Series
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