SEW-Eurodrive MFE Series - Communication Via Ethercat

13
Operation with the MOVITOOLS
®
MotionStudio engineering software
Communication via EtherCAT
Manual – EtherCAT
®
Interfaces, Field Distributors
107
The following table describes the [Extended setting] for the serial (RS485) communic-
ation channel:
Communication
parameters
Description Note
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
sent 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)
Repetitions Number of request
retries after the
timeout is exceeded
Default setting: 3
13.5 Communication via EtherCAT
®
Communic
ation via
EtherCAT
13.5.1 Overview
INFORMATION
Do not use unused EtherCAT
®
interfaces of an EtherCAT
®
slave for engineering pur-
poses. Use only the EtherCAT
®
master interface intended for engineering for this pur-
pose.
Aside from cyclical process data. EtherCAT
®
offers acyclically transmitted parameter
adjustment services. The mailbox gateway of the EtherCAT
®
master performs the fol-
lowing tasks:
• Adding the parameter adjustment services of MOVITOOLS
®
MotionStudio to the
EtherCAT
®
telegrams.
• Forwarding the drive feedback to MOVITOOLS
®
MotionStudio.
The installation of the mailbox gateway and the EtherCAT
®
master can be performed
on one or various devices.
25809148/EN – 01/2019