Omron CS1W-MC221 -, Operation Manual

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Interface Specifics Section 5-4
Executing Block Numbers
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.
Timing Chart Refer to the timing chart for the Cycle Start Bits on page 268.
Task Error Flags
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.
Timing Chart Refer to the timing chart for the Autoloading Error Flag on page 303.
Automatic Mode Flags
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.
Word Task Bits I/O Valid mode
MC221 MC421
n+14 n+22 Task 1 00 to 15 Input ---
n+18 n+26 Task 2
--- n+30 Task 3
--- n+34 Task 4
x16
0
x16
1
x16
2
0
15 0
Word Task Bit I/O Valid mode
MC221 MC421
n+15 n+23 Task 1 00 Input ---
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
Signal Meaning
↑
A task error has occurred.
↓
The Task Error Reset Bit has been turned ON
0 Normal operation.
Word Task Bit I/O Valid mode
MC221 MC421
n+15 n+23 Task 1 02 Input ---
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4