;PROGRAMMING
1
Connection instructions
Ladder block series connection and parallel connection
(ANB,
ORB)
(a) ANB
The AN8 instruction performs an AND operation for blocks A and block
B,
and uses it
as an operation result. The symbol
of
ANB is not a contact symbol but a connection
symbol. A maximum of
7
ANB instructions can be written consecutively.
Block A
For
a paralie1 connection with only one
contact, use the OWORI instruction.
:b) ORB
The ORB instruction performs the OR operation
of
block A and block B, and uses
it
as
an operation result. The ORB instruction only performs parallel connection
of
circuit
blocks with two or more contacts. For parallel connection
of
circuit blocks with only one
contact, the OR and
OR1
instructions should be used. The symbol
of
ORB is not a
contact symbol but a connection symbol. A maximum
of
7
ORB instructions can be
written consecutively.
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