Table of Contents
Advertisement
EtherCAT
NOTICE
If the MAS EtherCAT configuration is incorrectly activated on the slave side, it may result in an
overflow of the Lost Frames counter, particularly in the following cases:
Ä The supply voltage of the device on the master side and/or on the slave side is switched off.
Ä The EtherCAT link of the participants directly connected to the devices is interrupted.
Ä The optical link between the data transmission devices is interrupted.
In automatic operation, interruption of the optical link can result from incorrect alignment of
the two devices with respect to one another.
7.3.2
Alternative MAS EtherCAT configuration
In specific applications, it can be necessary to activate the MAS EtherCAT configuration set ex works on
the other device.
• Device with "Frequency F4": MAS EtherCAT configuration deactivated; slave-side mounting
• Device with "Frequency F3": MAS EtherCAT configuration activated; master-side mounting
Application examples:
• During parallel operation of data transmission systems, it may be necessary to exchange the devices
with "Frequency F4" and "Frequency F3" at the installation site (see chapter 4.5 "Mounting distance for
parallel operation of data transmission systems").
In this case, a device with "Frequency F3" or – as the case may be – with "Frequency F4" is installed
on the master side.
• In rare cases, interference with other optical sensors located nearby cannot be excluded. Exchanging
devices with "Frequency F4" and "Frequency F3" at the installation site may counter this effect.
NOTICE
Ä Activating/changing the MAS EtherCAT configuration, see chapter 6.1 "Setting the operating
mode".
Ä The activation/changing of the MAS EtherCAT configuration remains stored in the device.
E therC A T
1
1
Master
2
Bus terminals
3
Master-side installation
4
Slave-side installation
5
Device with "Frequency F3"
Fig. 7.5:
Alternative MAS EtherCAT configuration: device with "Frequency F3" installed on master side
Leuze electronic GmbH + Co. KG
2
3
D D LS 538
F requency F 3
„M A S " = on
DDLS 538 ... S2 ...
5
4
D D LS 538
I/O 's
F requency F 4
„M A S " = off
54
Advertisement
Table of Contents
