ABB IM300-I - Communication Protocol Address Table and Description

IM300 Intelligent Power Monitoring Instrument
64
bits. Form a new polynomial, the result is 1010000000000001 or hexadecimal A001.
② Load all 1s or hexadecimal FFFFs into 16-bit registers.
③ 16-bit register with low-order byte of the first data byte XOR operation, the
results stored in 16-bit register.
④ 16-bit register to the right one. If the overflow bit is 1, go to step 5, otherwise
go to step 6.
⑤ MOR operation is performed on the 16-bit register with the new generator
polynomial and the result is stored in the 16-bit register.
⑥ Repeat step 4 until it is shifted 8 times.
⑦
XOR operation of the next data byte with the low byte of the 16-bit register,
the result is stored in a 16-bit register.
⑧ Repeat steps 4 to 7 until all bytes of data have been XORed with 16-bit
registers.
⑨
16-bit register is the content of CRC-16.
4.2. Communication protocol address table and description
Relay operation address table, supports read function of code 01 and remote
control function of code 05
Address
Type
Name
Register
00010
RW
RL1
1
00011
RW
RL2
1
Digital address table, supports read function of code 02
Address
Type
Name
Register
10100
RO
DI1
1
10101
RO
DI2
1
10102
RO
DI3
1
10103
RO
DI4
1
System information address table, supports read function of code 03,04 and
set the code 06,10