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7 CC-Link IE Field Network Basic FUNCTION
7.1 Cyclic Transmission
77
7
Setting method
Assign link devices in "Network Configuration Settings". (
Page 177 Network Configuration Settings)
Assign link refreshes in "Refresh Settings". (
Cyclic transmission is performed for a group which consists of up to 16 stations. For assignments of link
devices and the one for link refreshes, however, the group number is not required to be taken into
consideration.
Cyclic transmission data flow
This shows the cyclic transmission data flow.
■
Basic operation
The master station sends a request to all slave stations. (Including Ethernet devices within the same network address. After
sending requests to all slave stations, the master station starts another link scan after the set link scan time elapses. A link
scan refers to the operation from sending a request to sending another request, and the link scan time refers to the time
required for a link scan. (
The master station sends requests to slave station 1/slave station 2.
Slave station 1 returns a response to the master station.
Slave station 2 returns a response to the master station.
After the configured link scan time elapses, the master station starts sending another request.
• When the master station sends a request (when a cyclic transmission is started) to all slave stations, 'Cyclic
transmission status' (SM1536) turns ON, and when the master station receives responses from each slave
station, a bit, which corresponds to the station number of the slave stations that have sent a response of
'Cyclic transmission status of each station' (SD1536 to SD1539), turns ON.
• When the master station starts cyclic transmission, if no response has been received from a slave station,
the slave station is not regarded as an error station. ('Data link status' (SM1540) does not turn ON.) In
addition, the transmission status of CC-Link IE Field Network Basic diagnostics becomes "Unfixed".
Ls: Link scan
(1) Master station
(2) Slave station 1
(3) Slave station 2
Õ
(1)
(2)
(3)
Õ
Ò
Ò
Ò
Ó
Ó
Ô
Ô
Ls
Ls
Содержание MELIPC MI5000 Series
Страница 1: ...MELIPC MI5000 Series User s Manual Application MI5122 VW ...
Страница 2: ......
Страница 18: ...16 MEMO ...
Страница 22: ...20 1 DIAGNOSTIC AND MAINTENANCE FUNCTIONS 1 1 Watchdog Timer WDT Function MEMO ...
Страница 42: ...40 5 iQSS FUNCTION MEMO ...
Страница 146: ...144 11 SECURITY FUNCTION 11 3 IP Filter Function MEMO ...
Страница 148: ...146 12 MELSOFT PRODUCT AND GOT CONNECTION FUNCTION 12 1 Connection Method MEMO ...
Страница 150: ...148 13 SYSTEM COUNT FUNCTION MEMO ...
Страница 152: ...150 14 TIMER EVENT FUNCTION MEMO ...
Страница 160: ...158 15 OS LINKING FUNCTIONS 15 3 Inter OS Event Notification Function MEMO ...
Страница 162: ...160 16 SERIAL INTERFACE SWITCHING FUNCTION MEMO ...
Страница 165: ...17 BASIC PARAMETERS 17 1 Basic Parameter List 163 17 Operation related setting Window ...
Страница 170: ...168 17 BASIC PARAMETERS 17 1 Basic Parameter List RAS setting Window ...
Страница 174: ...172 17 BASIC PARAMETERS 17 1 Basic Parameter List External device connection settings Window ...
Страница 177: ...17 BASIC PARAMETERS 17 1 Basic Parameter List 175 17 External device connection applicable settings Window ...
Страница 313: ...APPX Appendix 10 List of VxWorks Components 311 A MEMO ...
Страница 315: ...I 313 MEMO ...
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