MODBUS Protocol 89
E500 Series Universal Low-Power Inverter
3. Definition of communication parameter address
Distribution of inverter parameter address:
Register implication Register address space
Functional parameter
(1)
High is the number of function code group, while low is mark
number of function code, e.g. F1.11, the register address is F10B.
Monitoring parameter
High is 0xD0 and low is monitoring mark number, e.g. d-12, the
register address is D00C
Operation command
(2)
0x1001
Frequency setting 0x1002
Inverter status
(3)
0x2000
Fault message
(4)
0x2001
Note:
(1)The
frequent writing of function code parameters in the EEPROM will reduce
its service life. Some parameters in the communication mode don’t need to store,
but to modify the RAM value. When writing the functional parameter of RAM,
just change “F” to “0” in the high address of the register, e.g. when writing the
RAM value of F1.11, its register address should be 010 B, but the expression
method of the register address cannot be used to read the functional parameters
of the frequency inverter.
(2) Operation command corresponding to operation command code:
Operation command code Operation command
0x0000 Invalid command
0x0001 FWD running start
0x0002 REV running start
0x0003 Stop
0x0004 FWD inching of slave machine
0x0005 REV inching of slave machine
0x0006 Inching running stops
0x0020 Fault reset of slave machine
(3) Inverter status:
Inverter status code Indication
0x0000 The direct voltage of slave machine is not ready
0x0001 In FWD running of slave machine
0x0002 In REV running of slave machine
0x0003 Slave machine stops
0x0004 In FWD inching running of slave machine
0x0005 In REV inching running of slave machine
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