13
Operation with the MOVITOOLS
®
MotionStudio engineering software
Serial communication (RS485) via interface adapters
Manual – PROFINET IO Interfaces, Field Distributors
160
Communication
parameter
Description
Information
Baud rate
Transmission speed
with which the con-
nected PC commu-
nicates with the
device in the net-
work via the commu-
nication channel.
•
Possible values:
– 9.6 kBit/s
– 57.6 kBit/s
– AUTO (default setting)
•
Find the correct value for the connec-
ted device in the documentation.
•
If you set "AUTO", the devices are
scanned with both baud rates in suc-
cession.
•
If you do
not
set "AUTO", you must
configure the baud rate to 57.6 kBit/s.
•
Set the initial value for automatic baud
rate detection under [Settings] > [Op-
tions] > [Communication].
The following table describes the [Extended setting] for the serial (RS485) communic-
ation channel:
Communication
parameter
Description
Information
Parameter tele-
grams
Telegram with 1
single parameter
Used to transfer 1
single parameter
of a
device.
Multi-byte tele-
grams
Telegram with sev-
eral parameters
Used to transfer the
complete
parameter
set of a device.
Timeout
Waiting time in [ms]
that the master waits
for a response from
the slave after it has
made a request.
•
Default setting:
– 100 ms (parameter telegram)
– 350 ms (multi-byte telegram)
•
If not all devices are detected during a
network scan of communication prob-
lems occur, increase the values as fol-
lows:
– 300 ms (parameter telegram)
– 1000 ms (multi-byte telegram)
Retries
Number of request
retries after the
timeout is exceeded
Default setting: 3
22870857/EN – 12/2016
