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WPMZ Series Modbus communication instruction manual
IM-0862-02
Number of pages:109
18
Calculation example: Perform CRC calculation of 010400000002.
Table
3.18
Calculated data example: 010400000002 (6 bytes data)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CF
説明
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-
FFFFH
(initialization)
01 (1st byte)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
-
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
-
XOR top two rows
right shift 1st
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
right shift 2nd
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
-
XOR top two rows
right shift 3rd
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
right shift 4th
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
-
XOR top two rows
right shift 5th
0
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
right shift 6th
0
0
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
-
XOR top two rows
right shift 7th
0
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
right shift 8th
0
0
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
-
XOR top two rows
04 (2nd byte)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
-
1
0
0
0
0
0
0
0
0
1
1
1
1
0
1
0
-
XOR top two rows
right shift 1st
0
1
0
0
0
0
0
0
0
0
1
1
1
1
0
1
0
right shift 2nd
0
0
1
0
0
0
0
0
0
0
0
1
1
1
1
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
-
XOR top two rows
right shift 3rd
0
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
0
-
XOR top two rows
right shift 4th
0
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
0
right shift 5th
0
0
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
1
1
0
0
0
0
0
0
0
0
0
1
0
-
XOR top two rows
right shift 6th
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
1
0
right shift 7th
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
-
XOR top two rows
right shift 8th
0
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
1
0
0
0
1
1
0
0
0
0
0
0
0
1
-
XOR top two rows
00 (3rd byte)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
1
1
1
0
0
0
1
1
0
0
0
0
0
0
0
1
-
XOR top two rows
right shift 1st
0
1
1
1
0
0
0
1
1
0
0
0
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
1
0
0
0
1
1
0
0
0
0
0
0
1
-
XOR top two rows
right shift 2nd
0
1
1
0
1
0
0
0
1
1
0
0
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
0
1
0
0
0
1
1
0
0
0
0
0
1
-
XOR top two rows
right shift 3rd
0
1
1
0
0
1
0
0
0
1
1
0
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
0
0
1
0
0
0
1
1
0
0
0
0
1
-
XOR top two rows
right shift 4th
0
1
1
0
0
0
1
0
0
0
1
1
0
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
0
0
0
1
0
0
0
1
1
0
0
0
1
-
XOR top two rows
right shift 5th
0
1
1
0
0
0
0
1
0
0
0
1
1
0
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
0
0
0
0
1
0
0
0
1
1
0
0
1
-
XOR top two rows
right shift 6th
0
1
1
0
0
0
0
0
1
0
0
0
1
1
0
0
1
CF became 1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
-
A001H
1
1
0
0
0
0
0
0
1
0
0
0
1
1
0
1
-
XOR top two rows
right shift 7th
0
1
1
0
0
0
0
0
0
1
0
0
0
1
1
0
1
CF became 1