Delta DVP-15MC Series User Manual

DVP-15MC Series Motion Controller Operation Manual
8-342
_8
Boolean
Bit string Integer
Real
number
Time, date
POINTER
BOOL BYTE WORD DWORD LWORD USINT UINT UDINT ULINT SINT INT DINT LINT REAL LREAL TIME DATE TOD DT
POINTER TO BYTE
Data
●
Length
●
OutOrder
●
CRC16
●
Note:
The symbol ● indicates that the parameter is allowed to connect to the variable or constant of the data type.
 Function Explanation
CRC16 instruction is used to calculate the CRC value of the specified data.
The instruction performs the calculation of the CRC value according to the starting address specified by
Data and number of bytes specified by Length.
The calculation result is put in the output parameter CRC16. The arrangement for the bytes of the CRC
value is specified by OutOrder.
 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.
 Programming Example
 The variable table and program
Variable name
Address
Data type
Current value
CRC_EN
BOOL
TRUE
IN_Data
%MB100
ARRAY[1..6] OF BYTE
[16#01,16#03,16#10,16#01,16#00,16#02]
IN_Length
UINT
6
IN_OutOrder
BOOL
FALSE
OUT_CRC
WORD
16#910B
 When CRC_EN changes from FALSE to TRUE, the CRC16 instruction checks the 6 bytes
[16#01,16#03,16#10,16#01,16#00,16#02] in IN_Data.
The calculation result is 16#910B which is put in OUT_CRC.
CRC
EN ENO
Data Out
Length
OutOrder
ADR(IN_Data[1])
IN_Length
IN_OutOrder
OUT_CRC
CRC EN_

Delta DVP-15MC Series Specifications

General

Brand	Delta
Model	DVP-15MC Series
Category	Controller
Language	English