Instruction 56- logic shift – 1 bit shift right – Maple Systems MAPware-7000 User Manual
Page 101
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MAPware-7000 Ladder Logic Guide
1010-1041 rev. 00
Instruction 56- Logic Shift – 1 bit shift right
Expression:
Space Requirement: 1 line x 3 column Location Requirement: Middle, Right rail
Function:
When the input is ON, the data of register A is shifted 1 bit to the right (LSB direction). 0 is
stored in the left most bit (MSB). The pushed out bit state is stored in the carry flag (CF = S976).
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
---
Execution
When LSB = 1
ON
Set or Reset
ON
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
Operation
Data
√
√
√
√
√ √
√
√
√
√
Example:
When X007 is changed from OFF to ON, the data of BW15 is shifted 1 bit to the right.
The figure below shows an operation example.