84
Specifications Section 2-1
Function Specific ations
Task Flag Area 32 (TK0000 to TK0031)
Task Flags are read-only flags that are ON when the corresponding
cyclic task is executable and OFF when the corresponding task is not
executable or in standby status.
9-19 Task Flags
Programming Manual:
4-2-3 Flags Related to
Cyclic Tasks
Trace Memory 4,000 words (trace data: 31 bits, 6 words) Programming Manual:
7-2-4 Tracing Data
File Memory Memory Cards: Compact flash memory cards can be used (MS-DOS
format).
EM file memory (CJ1-H and CJ1 CPU Units only): Part of the EM Area
can be converted to file memory (MS-DOS format).
OMRON Memory Cards can be used.
Programming Manual:
SECTION 5: File Mem-
ory Functions
Item Specifications Reference
Constant cycle time 1 to 32,000 ms (Unit: 1 ms)
When a Parallel Processing Mode is used for a CJ1-H CPU
Unit, the cycle time for executing instructions is constant.
10-4 Computing the
Cycle Time
Programming Manual:
6-1-1 Minimum Cycle
Time
Cycle time monitoring Possible (Unit stops operating if the cycle is too long): 10 to
40,000 ms (Unit: 10 ms)
When a Parallel Processing Mode is used for a CJ1-H CPU
Unit, the instruction execution cycle is monitored. CPU Unit
operation will stop if the peripheral servicing cycle time
exceeds 2 s (fixed).
10-4 Computing the
Cycle Time
Programming Manual:
6-1-2 Maximum Cycle
Time (Watch Cycle
Time) and 6-1-3 Cycle
Time Monitoring
I/O refreshing Cyclic refreshing, immediate refreshing, refreshing by
IORF(097).
IORF(097) refreshes I/O bits allocated to Basic I/O Units and
Special I/O Units.
With the CJ1-H and CJ1M CPU Units, the CPU BUS UNIT I/
O REFRESH (DLNK(226)) instruction can be used to refresh
bits allocated to CPU Bus Units in the CIO and DM Areas.
10-4 Computing the
Cycle Time
Programming Manual:
6-1-6 I/O Refresh Meth-
ods
Timing of special refreshing
for CPU Bus Units
Data links for Controller Link Units and SYSMAC LINK Units,
remote I/O for DeviceNet Units, and other special refreshing
for CPU Bus Units is performed at the following times:
CJ1 and CJ1M CPU Units: I/O refresh period
CJ1-H CPU Units: I/O refresh period and when the CPU BUS
UNIT I/O REFRESH (DLNK(226)) instruction is executed.
10-4 Computing the
Cycle Time
I/O memory holding when
changing operating modes
Depends on the ON/OFF status of the IOM Hold Bit in the
Auxiliary Area.
SECTION 9 Memory
Areas
9-2-3 Data Area Prop-
erties
Programming Manual:
6-4-1 Hot Start/Cold
Start Function
Load OFF All outputs on Output Units can be turned OFF when the
CPU Unit is operating in RUN, MONITOR, or PROGRAM
mode.
Programming Manual:
6-5-2 Load OFF Func-
tion and 7-2-3 Online
Editing
Timer/Counter PV refresh
method
CJ1-H and CJ1M CPU Units: BCD or binary (CX-Program-
mer Ver. 3.0 or higher).
CJ1 CPU Units: BCD only.
Programming Manual:
6-4 Changing the
Timer/Counter PV
Refresh Mode
Item Specifications Reference
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