IDEC MICRO/I HG4G-CJT22 F-B Series User Manual page 167

• Bytes and BCC data
When the converted data is 3034h, the data appended to the transmission data is as follows.
Converted data
BCC data
(Second byte) (First byte)
0 4
(30h) (34h) (34h)
1 byte
Converted data
(Second byte) (First byte)
0 4
(30h) (34h) (30h)
2 bytes
• When Calculation Type is Modbus ASCII (LCR)
When the BCC calculation result is 4241h after Hexadecimal to ASCII conversion the resulting two bytes of
data is appended to the transmission data.
Data
4241h
Hexadecimal to ASCII
• When Calculation Type is Modbus RTU (CRC)
When the BCC calculation result is BA30h with no conversion the two bytes of data is appended to the
transmission data.
Data
BA30h
No conversion
4
BCC data
0 4
(34h)
Converted data
(Second byte) (First byte)
B A
(42h) (41h)
2 bytes
Converted data
(Second byte) (First byte)
BAh 30h
2 bytes
WindO/I-NV4 User's Manual
BCC data
B A
(42h) (41h)
BCC data
BAh 30h
5 User Communication
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