Best E5 Series User Manual page 197

E5 User Manual
Parameter Mapping register
group address, high byte
P10
P11
P12
P20
P21
P22
P23
P24
P30
P31
P32
P33
P34
P35
P36
For example, the register address of drive parameter P10.02 is 0x202 while that of P40.07 is
0x1107.
In the following paragraphs, we present the formats and meanings of Modbus protocol
parameters and data portion hereafter, i.e. to introduce the "parameter" and "data" related
contents in above-noted data frame format. These two parts constitute the application layer
protocol data unit of Modbus. The application layer protocol data unit mentioned below refers to
these two parts. We take RTU mode for example to describe frame format below. The length of
application layer protocol data unit should be doubled in ACSII mode.
Application layer protocol data units of various parameters are as follows:
Parameter 03: read register content
Request format is shown in appendix table 6.
Application layer protocol
data unit
Parameter
Register address
Number of registers
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
Table 7-6
Data length (number of
bytes)
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Parameter group
P50
P51
P52
P53
P54
P55
P56
P60
P61
P62
P70
P71
P80
P81
P33
1
2
2
Chapter 7 Modbus Maintenance
Mapping register
address, high
byte
0x13
0x14
0x15
0x16
0x17
Reserved
Reserved
0x1A
Reserved
Reserved
0x1D
0x1E
0x1F
0x20
0x21
Range
0x03
0x0000~0xFFFF
0x0001~0x004