Name :Cycle to the right
Symbol :ROR
Illustrate:
The function of this type module is to move the input parameter 1 "IN" to the right cyclically to the input parameter 2 "N" bit, the result is assigned to the output parameter OUT, the BOOL type still obtains the original value after cyclically shifting any bit, when the displacement number N of BYTE type, USINT type and SINT type exceeds 8, the operation is carried out according to N%8 (remainder), when the displacement number N of UINT type, INT type and WORD type exceeds 16, the operation is carried out according to N%16 (remainder), when the UDINT type, If the shift number N of DINT type and DWORD type exceeds 32, N%32 (remainder) is calculated.
Image:
Parameter:
| Parameter | Statement | Type | Description |
|---|---|---|---|
| IN | Input | BOOL/BYTE/WORD/DWORD | First input value (operand) |
| N | Input | UINT | Second input value (number of right shifts) |
| OUT | Output | BOOL/BYTE/WORD/DWORD | Output value |
Example:
LD:
ST:
Interpretation:
| parameter | operand | value |
|---|---|---|
| IN | TagIn1 | 8 |
| N | TagIn2 | 33 |
| OUT | TagOut | 4 |
IN1 and N input the corresponding type of data, and the ROR outputs the result of the cyclic rightward shift.