Inovance AM600 Series - Page 16

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Number of slaves
Up to 125 slaves. AM401: supports 4 DSP402 slaves; AM402:
supports 8 DSP402 slaves
EtherCAT frame
length

Process data Max. 1486 bytes per Ethernet frame
󶏎Wiring
The CPU module provides a CN4 port for EtherCAT bus communication. An ECT
communication network cable that meets the following requirements is a must:




$BCMFDPOOFDUPS1$QSPOH
"8($BUFTIJFMEFEUXJTUFEQBJS
$BCMFDPOOFDUPS1$QSPOH

Figure 6 Requirements on the EtherCAT cable
 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 
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
󶍽
 Technical requirements:
100% continuity test, no short circuit, open circuit, misalignment and poor
contact. It is recommended to use the following cables: