Lenze i510 - Short Setup of Modbus

8.5.12 Short setup of Modbus
In the following, the steps required for controlling the inverter via Modbus are described.
Parameterisaon required
1.
Acvate network: 0x2631:037 (PAR 400/037) = "1: TRUE"
2.
Set netw
ork as default setpoint source: 0x2860:001 (PAR 201/001) = "5: Network"
3.
Set Modbus node address. 4Modbus node address^ 127
4.
Set Modbus baud rate. 4Modbus baud rate^ 128
•
Default seng: automac detecon.
•
If the automac baud rat
e detecon funcon is acvated, the rst 5 ... 10 messages are
lost aer switch-on.
5.
Set Modbus data format. 4Modbus data format^ 128
•
Default seng: automac detecon.
•
If the automac data format detecon funcon is acvated, the rst 5 ... 10 messages are
lost aer switch-on.
Digital input DI1 is assigned with the "Start enable" funcon by default and
ther
e
f
or
e mus
t be set to HIGH level. 4Controller enable, starng & stopping,
reversal
^ 188
Starng/stopping the drive via Modbus
For starng/stopping the drive, Modbus register 42101 can be used.
•
Modbus r
egister 42101 is permanently assigned t
o the AC Drive control word 0x400B:001
(PAR 592/001).
•
In the frame, the leading 4 is omied in the addressing process. The numbering of the regis-
ters starts with 1; addr
essing, however starts with 0. Therefore the address 2100 (0x0834) is
used in the frame when register 42101 is wrien.
Bits set in the AC Drive control word:
•
Bit 0 ≡ forward operaon
•
Bit 5 ≡ network contr
ol
•
Bit 6 ≡ network setpoint set
Example of an inverter with the node address 1:
Request frame by the master
Slave address Funcon code Data Checksum (CRC)
Register address AC Drive control word
0x01 0x06 0x08 0x34 0x00 0x61 0x0B 0x8C
If digital input DI1 ("Start enable") is set to HIGH level, the drive should start and the inverter
should r
espond with the same fr
ame as conrmaon:
Response message from the inverter
Slave address Funcon code Data Checksum (CRC)
Register address AC Drive control word
0x01 0x06 0x08 0x34 0x00 0x61 0x0B 0x8C
Conguring the network
Modbus
Short setup of Modbus
137
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