3.1.3 EtherCAT Cables
Cable Type
Specification
Ethernet standard Standard Ethernet (in accordance with IEEE
802.3), 100Base-TX (FastEthernet)
Cable Type
S/FTP (Screened Foiled Twisted Pair, ISO(IEC
11801 or EN 50173), CAT 5e
Damping
23.2 dB (at 100 MHz and 100 m each)
Crosstalk damping 24 dB (at 100 MHz and 100 m each)
Return loss
10 dB (100 m each)
Surge impedance 100
Ω
Table 3.1 Specification of EtherCAT Cables
3.1.4 LED Behaviour
The option has 3 bicolored LEDs that allow a fast and
detailed diagnosis. The three LEDs are each linked to its
unique part of the EtherCAT option:
LED Label
Description
Status
Module Status, reflects the activity on the
EtherCAT slave
Link/Act In
Link/status In, reflects the activity on the IN
port
Link/Act Out
Link/status In, reflects the activity on the OUT
port
Table 3.2
Illustration 3.3 Overview of the Option
Power OFF or State INIT
Initialisation/Bootstrap
PRE-OP State
SAFE-OP State
OP State
ERR-Init State
Process Data Watchdog
timeout
Green
Red
Table 3.3 Indication of Status LED
Power OFF or NO Link
Link
Link Active
Green
Red
Table 3.4 Link/Act LED
How to Install
MCA 124 EtherCAT Operating Instruction
8
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