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7 CC-Link IE Field Network Basic FUNCTION
7.1 Cyclic Transmission
Link refresh
This function automatically transfers data between devices and link devices of the master station.
Link refresh is performed in sync with link scan. (
Setting method
A refresh target device is assigned by "Refresh Settings" under "CC-Link IEF Basic Setting". (
Precautions
■
When a file register is specified for a refresh target device
A file register is a latching device, so the value is retained when the power supply of this product is turned OFF to ON or
during the reset. Therefore, if product file register data being latched is cleared to '0' by turning the power supply OFF to ON
or resetting, depending on the timing of link scan and link refresh, the latched data is output without being cleared to '0'.
To prevent the output of file register data of this product being latched, perform the following operation.
Operation during refresh
■
During output from a master station (this product)
The programmable controller device (user device, file register) is refreshed to the link device (RY, RWw) at the start of link
scan of each group number.
■
At input from slave station
The link device (RY, RWr) is refreshed to the programmable controller device (user device, file register) at the end of link scan
of each group number.
Item
Description
File register (ZR)
• Change the refresh target device to a user device.
• Clear the file register values to "0" before turning the power supply of this product OFF to ON or resetting this
product.
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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