Inovance AC700 Series, Руководство пользователя

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Wiring
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30
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Cable specifications
Use the shielded twisted pair (STP) of Cat 5e or above for EtherCAT communication. The requirements
are as follows.
1. Cable requirements
2. 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. Otherwise, the signal will be attenuated and the
communication will be affected.
3. 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 specifications:
Item
Specifications
Cable type Flexible crossover cable, S-FTP, Cat 5e
Complied standards
EIA/TIA568A, EN50173, ISO/IEC11801
EIA/TIA bulletin TSB, EIA/TIA SB40-A&TSB36
Conductor cross section
AWG26
Conductor type Twisted pair
Number of pairs
4
The following table describes the relationship between the number of EtherCAT bus nodes, cable
impedance, and transmission distance:
Max. Number of
Nodes
Cable Impedance 16 32 64
Transmission
Distance
88 Ω/km 215 m 200 m 170 m
93 Ω/km
205 m 185 m 160 m
157 Ω/km
120 m 110 m 95 m
4. Signal pins
Pin
Signal (Ethernet 1000
Mbps)
Signal Direction
Description
1 TD+ Output
Data trans
2 TD− Output
Data transmission−
3 RD+ Input
Data re
4
– (DC+*) – (Bidirectional) Not used (data C+)
5
– (DC−) – (Bidirectional) Not used (data C+)
6 RD− Input Data reception−