AS Series Programming Manual 6.9.2 Explanation of Logic Instructions Symbol S 1 ： Data source 1 S 2 ： Data source 2 D ： Operation result _6 Explanation 1. This instruction applies the logical operator AND to the binary representations in S 1 and S 2 It performs the logical AND operation on each pair of corresponding bits and stores the result in D . 2. Only the DAND instruction can use the 32-bit counter. 3. The result in each position is 1 if the first bit is 1 and the second bit is 1; otherwise, the result is 0. Example 1 When X0.0 is ON, the instruction performs the logical operation AND on each pair of corresponding bits in the 16-bit device Y0 and the 16-bit device Y2.
It stores the result in Y4. 6-234 API Instruction code Operand Function 0800 D WAND P S , S , D 1 2 Logical AND operation Device X Y M S T C HC D FR SM SR E K 16# “$” F S 1 S 2 D BOOL WORD DWORD LWORD UINT INT DINT LINT REAL LREAL TMR CNT STRING Data type S 1 S 2 D Pulse instruction 16-bit instruction 32-bit instruction AS AS AS