Omron CS1W-LC001 Operation Manual page 224

How to Use the Step Ladder Program Block
List of Basic Instructions
Command
Command
code
LOAD 01
LOAD NOT 02
AND 03
AND NOT 04
OR 05
OR NOT 06
AND LOAD 07
OR LOAD 08
Ladder symbol Operand
Read
source
block
address/
ITEM
number
Read
source
block
address/
ITEM
number
Read
source
block
address/
ITEM
number
Read
source
block
address/
ITEM
number
Read
source
block
address/
ITEM
number
Read
source
block
address/
ITEM
number
000000
(fixed)
Circuit block
Circuit block
000000
(fixed)
Circuit block
Circuit block
Description
Indicates a logical start
of the logic block,
creates an ON/OFF
execution condition
based on the ON/OFF
status of the contact,
and connects to the next
stage.
Indicates a logical start
of the logic block,
creates an ON/OFF
execution condition
based on the reverse of
the ON/OFF status of
the contact, and
connects to the next
stage.
Takes a logical AND of
the status of the contact
and the current
execution condition.
Reverses the status of
the contact and takes a
logical AND with the
current execution
condition.
Takes a logical OR of
the status of the contact
and the current
execution condition.
Reverses the status of
the contact and takes a
logical OR with the
current execution
condition.
Takes a logical AND
between circuit blocks.
Takes a logical OR
between circuit blocks.
Appendix 1
: Can be used
Á
: Cannot be used
Input
conditions In logic
sequence
Not required
Not required
Required
Required
Required
Required
Required
(2 or more)
Required
(2 or more)
In step
sequence
207