Basic Instructions - Delta AS Series Programming Manual

5.2 Basic Instructions

Instruction code
LD/AND/OR
Device
DX DY

S
Data type

S
Symbol
Explanation
1. LD applies to contact A that starts from the main line or contact A which is the start of a contact circuit. Use it to save
the current contents, and store the contact state in the accumulative register.
2. AND connects contact A in series. It reads the state of the contact that is specified as connected in series, and
performs the AND operation with the previous logical operation result. It stores the final result in the accumulative
register.
3. OR connects contact A in parallel. It reads the state of the contact that is specified as connected in parallel, and
performs the OR operation with the previous logical operation result. It stores the final result in the accumulative
register.
Example
1.
Contact A of X0.0 is loaded, contact A of X0.1 is connected in series, contact A of X0.2 is connected in parallel, and
the coil Y0.0 is driven.
2.
When both X0.0 and X0.1 are ON, or when X0.2 is ON, Y0.0 is ON.
Operand
S
X Y M SM
   
S ： Specified device
LD
AND
OR
C ha pt er 5 Bas ic I ns t r uc t i ons
Function
Loading contact A/Connecting contact A in
series/Connecting contact A in parallel
S T C
  
HC D
 
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