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Chapter 1. ETHERCAT COMMUNICATION
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EtherCAT Communication Specifications
Item
Description
Communication standard
IEC 61158 Type12 (EtherCAT)
Physical layer
100BASE-TX, IEEE802.3
Connector
RJ-45 × 2 (IN, OUT)
Communication medium
STP cable with Cat. 5e or higher*
1
Communication distance
20 meters between nodes
Process data communication
Process data objects (PDOs) can be configured.*
2
Process data communication cycle 250 μs min. (depends on the settings of the master device)
Mailbox communication
CoE
Synchronization method
Freerun only (distributed clocks is not supported.)
LED indicators
RUN, ERR, Link/Activity × 2
Node address
The address can be specified by using the configured station alias or explicit device
identification.
*1. Use of a double-shielded STP cable is recommended in an environment with a large amount of electromagnetic noise
(e.g., FA equipment).
*2. PDOs to map can be selected by the master device. Accordingly, communication traffic can be reduced as needed.
Summary of Contents for K1G Series
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