Omron CS1W-MC221 - 02-2008 Operation Manual page 337

Interface Specifics
Executing Block Numbers
Timing Chart
Task Error Flags
Timing Chart
Automatic Mode Flags
310
Word
MC221 MC421
n+14 n+22 Task 1
n+18 n+26 Task 2
--- n+30 Task 3
--- n+34 Task 4
The block number of the block being executed (or being paused) in each task
will be stored as a 4-digit hexadecimal value between 0000 and 03E7 (deci-
mal: 0000 and 0999) in the following form.
Refer to the timing chart for the Cycle Start Bits on page 268.
Word
MC221 MC421
n+15 n+23 Task 1
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
A Task Error Flag will turn ON when one of the following error occurs.
• A program error.
• An error of an axis controlled by the task.
The Task Error Flag will be turned OFF if the Error Reset Bit is turned ON, but
if the cause of the error isn't corrected, the Task Error Flag will be turned ON
again the next time the task is executed.
The Error Flag (n+10, 14/n+18, 14) will be turned ON when a Task Error Flag
is turned ON.
Signal
A task error has occurred.
The Task Error Reset Bit has been turned ON
0 Normal operation.
Refer to the timing chart for the Autoloading Error Flag on page 303.
Word
MC221 MC421
n+15 n+23 Task 1
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
The Automatic Mode Flag will be ON when the task is in Automatic Mode.
Always make sure that this flag is ON when starting MC program execution
(with the Cycle Start Bit). The Cycle Start Bit will be ignored if this flag is OFF.
Task Bits
00 to 15 Input
15
2 1
0 x16 x16 x16
Task Bit
00 Input
Meaning
Task Bit
02 Input
Section 5-4
I/O Valid mode
---
0
0
I/O Valid mode
---
I/O Valid mode
---