4-3-2
About Disconnection, Resolution, and Multiple Columns
The following explains the meanings of the desorption, disassembly, and multiple columns used in CC-Link IEF Basic.
Term
Definitions
Renouncement
When there is no master station on the network due to cable disconnection or power off of the equipment.
Parallel off
Cyclic transmission from the master station is stopped.
Double-row
Cyclic transmission from the master station is running
Disconnection means a condition in which Ethernet communication has not been established. As CC-Link IEF Basic in the solution column
Cyclic communication is established, but cyclic transmission is stopped. The relationship between communication status, cyclic
transmission, and Ethernet communication is defined below. Refer to the product specifications of the master station to learn the definition
of disassembly and desorption states of the master station
Master
Slave
Communication
status
CC-Link IEF Basic
Cyclic transmission
Ethernet communication
Including UDP/IP communication
Master
During communic
ation
Conform to the master product specificati
ons
Conform to the master product spec
ifications
In the solution co
lumn
Conform to the master product specificati
ons
Conform to the master product spec
ifications
During withdrawa
l
Conform to the master product specificati
ons
Conform to the master product spec
ifications
Slave
(SJ-Ether)
During communic
ation
Running
Running
In the solution co
lumn
Stopped
Running
During withdrawa
l
Stopped
Stopped
Example of Slave Station Disconnection and Sequence Detection
The following shows an example of a slave station to detect a disconnection. When a desorption occurs, the solution seq
uence is also detected at the same time.
マスタ局
スレーブ局
1
スレーブ局
2
Cyclic Data
要求 送信
Cyclic Data
応答 送信
トラブル発生中
(
停止
)
タイムアウト時間
タイムアウト時間
タイムアウト時間
解列検出までの連続タイムアウト回数
=3
離脱・解列検出
離脱・解列検出
Master station
Slave station 1
Slave station 2
Cyclic Data Request Transmission
Cyclic Data Response Transmission
In trouble (STOP)
Detection of secession/splitting
Detection of secession/splitting
Timeout time
Timeout time
Timeout time
Continuous timeout times before splitting is detected = 3
Summary of Contents for Kostac SJ-Ether Series
Page 1: ...English version of the KOSTAC SJ Ether series user s manual SJ ETHER USER M...
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Page 13: ...1...
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Page 113: ...3 24 Note Refer to 6 3 3 Module Assembly for connections and locks between modules...
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Page 156: ...flashing OFF Not sent H W RX Green flashing Receiving H W OFF Not received H W...
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Page 310: ...Chapter 7 Maintenance...
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