Lenze i510 - Modbus Data Mapping

8.5.8 Modbus data mapping
The process of data mapping is used for dening which Modbus registers read or write to
which inverter parame
ters.
Details
•
There are xedly dened Modbus registers for common control and status words, which are
located in coherent blocks, in order to facilitate communicaon with OPC servers and other
Modbus masters. In order to access all relevant data of the inverter, only a minimum num-
ber of commands is required.
•
In addion, 24 registers are provided for variable mapping, i. e. free assignment to inverter
parameters.
Predened Modbus control registers
•
These registers ar
e provided with write and read access.
•
The cross-reference in column 2 leads to the detailed parameter descripon.
Modbus registers Permanently assigned parameter
Address Name
42101 0x400B:001 (PAR 592/001) AC Drive con
trol word
42102 0x400B:005 (PAR 592/005) Network setpoint frequency [0.01 Hz]
42103 0x4008:003 (PAR 590/003) NETWordIN2
42104 0x400B:001 (PAR 592/001) NETWordIN3
42105 0x400B:007 (PAR 592/007) Network process controller setpoint
42106 0x6071 Target torque
42107 0x4008:001 (PAR 590/001) NETWordIN1
42108 0x4008:004 (PAR 590/004) NETWordIN4
42109 ... 42121 - Reserved
Predened Modbus status registers
•
These r
egis
t
er
s ar
e only provided with read access.
•
The cross-reference in column 2 leads to the detailed parameter descripon.
Modbus registers Permanently assigned parameter
Address Name
42001 0x400C:001 (PAR 593/001) AC Drive st
atus word
42002 0x400C:006 (PAR 593/006) Actual frequency [0.01 Hz]
42003 0x603F (PAR 150) Error code
42004 0x400C:005 (PAR 593/005) Drive status
42005 0x2D89 (PAR 106) Actual motor voltage
42006 0x2D88 (PAR 104) Actual motor current
42007 0x6078 (PAR 103) Current actual value
42008 0x2DA2:002 (PAR 108/002) Apparent power
(42008 = High Word, 42009 = Low Word)
42009
42010 0x2D84:001 (PAR 117/001) Actual value
42011 0x2D87 (PAR 105) DC-bus voltage
42012 0x60FD (PAR 118) Digital inputs
42013 0x6077 (PAR 107) Torque actual value
42014 ... 42021 - Reserved
Variable mapping
•
Via 0x232B:1 ... 24, 24 registers c
an be mapped variably to parameters of the inverter.
Format: 0xiiiiss00 (iiii = hexadecimal index, ss = hexadecimal subindex)
•
The display of the internal Modbus register numbers in 0x232C:1 ... 24 is generated auto-
macally. Since 32-bit parameters require two registers, there is no 1:1 assignment.
•
For the mappable register
s, a CRC (Cyclic Redundancy Check) is executed. The checksum
determined is shown in 0x232D (PAR 532). The user can read this "validaon code" and use
it for comparison in the Modbus master. In this way it can be checked whether the inverter
currently queried is congured correctly for the respecve applicaon.
Conguring the network
Modbus
Modbus data mapping
132
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