Unitronics UMI-B1 UL Series Operation Manual page 121

UMI-B1 UL Series Inverter
High bit of data number
Low bit of data number
Byte number
High bit of data 0004H
Low bit of data 0004H
High bit of data 0005H
Low bit of data 0005H
Low bit of CRC
High bit of CRC
END
The RTU response command is:
START
ADDR
CMD
MSB of write data
LSB of write data
MSB of data number
LSB of data number
LSB of CRC
MSB of CRC
END
7.3.5 The definition of data address
The address definition of the communication data in this part is to control the running of
the inverter and get the state information and relative function parameters of the inverter.
7.3.5.1 The rules of parameter address of the function codes
The parameter address occupies 2 bytes with the high bit in the front and the low bit in
the rear. The range of high and low byte are: high byte—00–ffH; low byte—00–ffH. The
high byte is the group number before the radix point of the function code and the low
byte is the number after the radix point. But both the high byte and the low byte should
be changed into hex. For example P05.05, the group number before the radix point of
the function code is 05, then the high bit of the parameter is 05, the number after the
radix point 05, then the low bit of the parameter is 05, then the function code address is
0505H and the parameter address of P10.01 is 0A01H.
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
119
Communication protocol
00H
02H
04H
13H
88H
00H
32H
C5H
6EH
02H
10H
00H
04H
00H
02H
C5H
6EH