EtherCAT interface
56
AMS 338
i
Leuze electronic GmbH + Co. KG
9.5
EtherCAT electrical connection
Figure 9.3: EtherCAT - Electrical connection
Note!
For connecting BUS IN and BUS OUT, we recommend our ready-made EtherCAT cables
(see chapter 11.3.5 "Accessory ready-made cables for EtherCAT").
To set up an EtherCAT network, the AMS 338
i
provides a receiving bus under the BUS IN
designation given on the device, or a forwarding bus under BUS OUT. On a stub cable, the
AMS 338
i
can be connected to BUS OUT or BUS IN.
For the connection of two AMS 338
i
, the "KB ET
-
…
-
SSA" ready-made cables are pre
-
ferred, see Table "Order codes for EtherCAT connection cables" on page 92.
If you use ready-made cables, note the following:
Note!
The entire interconnection cable must be shielded. The shielding connection must be at the
same potential at both ends of the data line. This serves to prevent potential equalization
currents over the shield and possible interference coupling through compensating currents.
The signal lines must be stranded in pairs.
Use CAT 5 cables for the connection.
M12 socket
(D-coded)
M12 socket
(D-coded)
BUS IN (4-pin socket, D-coded)
BUS OUT (4-pin socket, D-coded)
Pin
Name
Comment
Pin
Name
Comment
1
TD+
Transmit Data +
1
TD+
Transmit Data +
2
RD+
Receive Data +
2
RD+
Receive Data +
3
TD-
Transmit Data -
3
TD-
Transmit Data -
4
RD-
Receive Data -
4
RD-
Receive Data -
Thread
FE
Functional earth (housing)
Thread
FE
Functional earth (housing)
BUS IN
TD+ 1
2
3
4
RD+
RD-
TD-
BUS OUT
TD+ 1
2
3
4
RD+
RD-
TD-
