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■ Signal pins
Pin Signal Signal Direction Signal Description
1 TD+ Output Data transmission+
2. TD- Output Data transmission-
3 RD+ Input Data reception+
4 -- -- Not used
5 -- -- Not used
6 RD- Input Data reception–
7 -- -- Not used
8 -- -- Not used
■ Length requirements:
According to FastEthernet technology, when an EtherCAT bus is used, the length
of the cable between the devices must not exceed 100 meters. Exceeding this
length will attenuate the signal and aect communication.
■ Technical requirements:
100% continuity test, no short circuit, open circuit, misalignment and poor contact.
Use a shielded cable as the EtherCAT bus for network data transmission, with the
following recommended specications:
Item Specications
Cable type Flexible crossover cable, S-FTP, Cat 5e
Complied standards:
EIA/TIA568A, EN50173, ISO/IEC11801
EIA/TI Abulletin TSB, EIA/TIA SB40-A&TSB36
Conductor cross section AWG26
Conductor type Twisted pair
Pair 4
Communication Wiring
■ EtherCAT connection
Insert the cable connector into the EtherCAT port of the branch module until you
hear a click sound.
Removal: press the release tab of the connector to pull out the connector and
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