Omron CS1W-MC221 -, Operation Manual

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Interface Specifics Section 5-4
Timing Chart 2
Cycle Start Received Flags
A Cycle Start Received Flag will turn ON when the Cycle Start Signal (rising)
is received. Use this flag to control Cycle Start Bit timing when executing one
block at a time (single block execution).
Timing Chart
M Code Reset Bit
(n+3, 06)
Program execution
M code output
(n+12/n+20)
M Strobe Flag
(n+15, 08/n+23, 08)
ON so the M code isn't output.
Word Task Bit I/O Valid mode
MC221 MC421
n+15 n+23 Task 1 09 Input ---
n+19 n+27 Task 2
--- n+31 Task 3
--- n+35 Task 4
Signal Meaning
1 A valid Cycle Start Bit signal has been received.
0 The Cycle Start Bit is OFF.
Cycle Start Bit
(n+3, 02)
Cycle Start
Received Flag
(n+15, 09/n+23, 09)
Single Block Bit
(n+3, 03)
Program execution