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Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
23
4
MOVILINK® protocol via RS485 transmission method
Serial Interfaces of MOVIDRIVE® B
4.3.3
Addressing and transmission method
Address byte
(ADR)
The address byte indicates the slave address independent of the direction of data. This
means the ADR character in a request telegram specifies the address of the inverter that
is to receive the request. In opposite direction, the master recognizes the inverter that
has sent the response telegram. The master is not addressed because the system is
generally a single-master system. The MOVILINK
®
protocol offers other addressing
variants in addition to single addressing. The table below shows the address ranges and
what they mean.
Single addressing
Every inverter can be directly addressed using addresses 0 - 99. The inverter responds
to every request telegram from the master with a response telegram.
ADR
Meaning
0 - 99
Single addressing within the RS485 bus.
100 - 199
Group addressing (multicast)
Special case group address 100: "Meaning not assigned to any group", i.e. not effective.
253
Local address: Only effective in conjunction with IPOS
plus®
as master and the MOVILINK
®
command. For unit internal communication
254
Universal address for point-to-point communication.
255
Broadcast address. No response is sent.
TIP
MOVIDRIVE
®
basically is a slave unit. However, master functions are also available
using IPOS
plus®
, the MOVILINK
®
command, and the master/slave function.
01488BEN
Master
Slave
Slave
Slave
ADR: 1
ADR: 3
ADR: 12
Inverter
Inverter
Inverter
Request
to ADR
12
Response
from
ADR
12
Request
to
ADR
3
Response
from
ADR
3
Request
to
ADR
1
Response
from
ADR
1
Содержание MOVIDRIVE MDX60B
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