Connection Instructions; Ladder Block Series Connections And Parallel Connections (Anb, Orb) - Mitsubishi MELSEC QS Series Programming Manual

5.2

Connection Instructions

5.2.1
Ladder block series connections and parallel connections
(ANB, ORB)
ANB, ORB
ANB
ORB
Function
ANB
(1) Performs an AND operation on block A and block B, and takes the resulting value as the
operation result.
(2) The symbol for ANB is not the contact symbol, but rather is the connection symbol.
ORB
(1) Conducts an OR operation on Block A and Block B, and takes the resulting value as the
operation result.
(2) ORB is used to perform parallel connections for ladder blocks with two or more contacts.
For ladder blocks with only one contact, use OR or ORI; there is no need for ORB in such
cases.
(3) The ORB symbol is not the contact symbol, but rather is the connection symbol.
ANB
Block A
Block A
Block B
Internal Devices
Set
Data
Bit Word
–– ––
[Ladder mode]
X0 X1
0
X3
X2
X4

5.2.1 Ladder block series connections and parallel connections (ANB, ORB)

Block B
ORB
For parallel connection of 1 contact,
OR or ORI is used.
Constants Others
Y10
5.2 Connection Instructions
ANB, ORB
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