A
A-2 Instructions
102
SYSMAC CP1L Getting Started Guide
Ap
pend
ix
A-2-2 Basic I/O Processing Instructions
Basic I/O processing instructions are used for writing to contacts and coils.
Note
When programming in CX-Programmer, there is no need to think of contacts and
coils (OUTs) as instructions. They can be written into the program by simply
selecting the corresponding symbols.
Writing Contacts
z
LD (LOAD) / LD NOT (LOAD NOT) Instructions
Use at the bus bar or at the beginning of a rung block.
Instruction Name
Instruction
Function
Contact
LOAD
LD
Used for contacts connected to the bus bar or to the beginning of a
rung block.
LOAD NOT
LD NOT
Used for closed contacts connected to the bus bar or to the
beginning of a rung block.
AND
AND
Used for contacts connected in series.
AND NOT
AND NOT
Used for closed contacts connected in series.
OR
OR
Used for contacts connected in parallel.
OR NOT
OR NOT
Used for closed contacts connected in parallel.
Coil
(Output)
OUT
OUT
Turns relay coil ON when execution condition is 1, and OFF when
execution condition is 0.
OUT NOT
OUT NOT
Turns relay coil OFF when execution condition is 1, and ON when
execution condition is 0.
SET
SET
Turns relay coil ON when execution condition changes from OFF to
ON. The relay coil will remain ON even when the execution
condition changes back to OFF.
RESET
RSET
Turns relay coil OFF when execution condition changes from OFF
to ON. The relay coil will remain OFF even when the execution
condition changes back to OFF.
KEEP RELAY
KEEP(011)
Makes the specified relay function as a keep relay.
000000
000001
Bus bar
W07E-EN-02+CP1L+GettingStartedGuide.book Seite 102 Montag, 15. September 2008 11:15 11
