Maple Systems MAPware-7000 - Manual (Page 103)

95 MAPware-7000 Ladder Logic Guide
1010-1041 rev. 00
Instruction 58- Logic Shift – n bits shift right
Expression:
Space Requirement: 1 line x 6 column Location Requirement: Middle, Right rail
Function:
When the input is ON, the data of register A is shifted n bits to the right (LSB direction) including
the carry flag (CF = S976), and stored in B. 0 is stored in upper n bits. After the operation, if the
right most bit (LSB) is ON, the output is turned ON.
Execution Condition:
Input Operation Output CF
OFF No execution OFF ---
ON Execution When LSB = 1 ON Set or Reset
When LSB = 0 OFF Set or Reset
Operand:
Coil or Bit Register Constant Index
Name X Y B S T. C. M
X
W Y
W B
W S
W
T C D I J K
M
W
A Source √ √ √ √ √ √ √ √ √ √ √
n Shift bits 1-16
B Destination √ √ √ √ √ √ √ √ √ √
Example:
When X007 is changed from OFF to ON, the data of BW18 is shifted 5 bits to the right and the
result is stored in BW20.
The figure below shows an operation example.