Omron SYSMAC CS1W-LCB01 Operation Manual page 290

How to Use the Sequence Table Block
• It is also possible to just switch to another step without executing an action.
Rule
Condition
No action
• An action cannot be executed without a condition.
If no Y or N values have been entered in the condition rows, the specified action will not be executed even
if Y and N values have been entered in the action rows.
Rule description in the
sequence table
Signal
Condition
Input A
Input B
Output C
Action
Output D
THEN
ELSE
• Execution Method for Each Rule (Same Setting for the Entire Sequence Table.)
A rule's action is executed just once when its condition goes from not met to met.
• Number of Rules
With the standard (not expanded) settings, up to 32 rules (01 to 32) can be used. With expansion, up to 64
rules (01 to 64) can be used.
The limitations are the same for condition signals and action signals. Up to 32 condition/action signals (32
each) can be used with the standard settings and up to 64 condition/action signals (64 each) can be used
with the expanded settings
Specify expanded rule settings and expanded condition/action setting in the Sequence Table Edit Window.
• Order of Rule Execution
When two or more rules (condition and action combinations) are described, they are executed simulta-
neously with OR logic.
Rule 1 Action example
When input A is ON and input
Condition
B is OFF,
Turn ON output D and turn
Action
OFF output E.
or
Action example
Rule 2
When input A is OFF and C is
Condition
ON,
Turn OFF output D and turn
Action
ON output E.
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Action example
When input A is ON and input
B is OFF,
No action
(Switch to step 02.)
No actions are entered.
Nothing entered in
Rule condition rows.
Y
The specified action will not
N
be executed even if Y and N
values are entered in the
action rows.
Rule description in the
sequence table
Rule description in the
sequence table
Signal Rule
Condition
Input A Y
Input B N
Output C
Output D
Action
THEN 02
ELSE
Switch to step 02.
OR between rules
Signal Rule 1 Rule 2
Input A Y N
Input B N
Input C Y
Output D Y N
Output E N Y
Appendix B