
544
7 APPLICATION INSTRUCTION
7.16 Check code
7.16
Check code
Check code
CCD(P)
These instructions calculate the horizontal parity value and sum check value in the error check methods used in
communication. There is another check method, called CRC (cyclic redundancy check). For obtaining CRC value, use the
CRC(P) instructions.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
*1
T, ST, C cannot be used.
Ladder diagram
Structured text
ENO:=CCD(EN,s,n,d);
ENO:=CCDP(EN,s,n,d);
Operand
Description
Range
Data type
Data type (label)
(s)
Head device number of applicable device
16-bit signed binary
ANY16
(d)
Head device number storing the calculated data
16-bit signed binary
ANY16
(n)
Number of data
1 to 32767
16-bit signed binary
ANY16
Operand
Bit
Word
Double word
Indirect
specification
Constant
Others
X, Y, M, L,
SM, F, B, SB
U
\G
T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s)
(d)
(n)
(s)
(d)
(n)
Summary of Contents for MELSEC iQ-F FX5 series
Page 1: ...MELSEC iQ F FX5 Series Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 21: ...19 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW ...
Page 98: ...96 4 STANDARD FUNCTIONS FUNCTION BLOCKS 4 2 Standard Function Blocks MEMO ...
Page 840: ...838 23 TIME DATA FUNCTIONS 23 4 Division MEMO ...
Page 887: ......