Delta Electronics DVP15MC11T User Manual

Chapter 8 Logic Instructions
8_
 Precautions for Correct Use

The input variables are not allowed to omit. An error will occur during the compiling of the software if
any input variable is omitted. But the output variable is allowed to omit.

The value of Out is the same as In when the value of Num is 0.

The number of bits by which the bits of original data are rotated left is equal to the value of Num
MOD In when the value of Num is greater than the number of bits of the value of In.
For example, if the data type of In is BYTE, the value of out when Num=USINT#1 is the same for
when Num=USINT#9.

Programming Example

The data types of ROL_In and ROL_Num are UINT and USINT respectively and their values are
300 and 3 respectively. The data type of Out1 is BYTE and the value of Out1 is 2400 when ROL_EN
is TRUE.
 The variable table and program
Variable name
Data type
Current value
ROL_EN
BOOL
TRUE
ROL _In
UINT
300
ROL _Num
USINT
3
Out1
UINT
2400
 Illustration of the example
1
0
1
0
1
1
0
1
0
1
1
0
1
0
11
Bit0Bit7
In
Out
Num=2, shifted by two bits left
Bit0
Bit7
1
ROL
EN ENO
In Out
ROL_EN
ROL_In Out1
Num
ROL_Num
0
1
0
11
0 00
0
Bit0Bit15
ROL_In
Out1
ROL_Num=3 rotated by three bits to the left,
1
0000000
0001011 0 00 10000
Bit0Bit15
8-129

Delta Electronics DVP15MC11T Specifications

General

Brand	Delta Electronics
Model	DVP15MC11T
Category	Controller
Language	English