Omron CS1W-MC221 - 02-2008 Operation Manual page 340

Interface Specifics
Optional Input Standby Flags
M Code Reset Standby Flags
Word
MC221 MC421
n+15 n+23 Task 1
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
An Optional Input Standby Flag will turn ON when a G-code command that
waits for an optional input is being executed. The Unit will be in a standby sta-
tus while the flag is ON; turn the optional input ON from the ladder program.
The following standby states are possible:
• The OPTIONAL STOP command (G76) stops MC program execution
waits for the input to go OFF.
• If an optional input is added as a parameter in an INTERPOLATION com-
mand (G00, G01, or G03), the command will be executed when the spec-
ified optional input turns ON.
Signal
1 Waiting for an optional input.
0 Not waiting for an optional input.
Word
MC221 MC421
n+15 n+23 Task 1
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
An M Code Reset Standby Flag will be ON whether MC program execution
has been stopped to wait for an M code to be reset. When this flag is ON, MC
program execution won't continue until the M Code Reset Bit is turned ON
and then OFF again. The standby status occurs when an M code from 0 to
499 is output.
The Program Execution Flag will turn ON when the M Code Reset Standby
Flag turns ON.
It is convenient to use this flag when determining whether an M code stands
by for an M code reset (M codes 0 to 499) or not (M codes 500 to 999).
Task Bit
06 Input
Meaning
Task Bit
07 Input
Section 5-4
I/O Valid mode
---
I/O Valid mode
---
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