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CHAPTER 9 CC-Link IE FIELD NETWORK DIAGNOSTICS
9
9.4 Link Start/Stop
● Mode
The link start/stop is not available in loop test mode.
● When the safety CPU module is reset or the system is powered off and on
Even if cyclic transmission was stopped by link stop, it will be restarted by resetting the safety CPU module or powering
off and on the system.
● If the link stop is executed to an error invalid station or temporary error invalid station
Note that the station is displayed as a station during data link in the "CC IE Field Diagnostics" window even after data link
has been stopped. Check the data link status in Data link status (own station) (SB0049). (If SB0049 is on, data link is
stopped.)
● Station where link start cannot be performed
Link start cannot be performed in the following cases.
• Station where cyclic transmission was stopped due to an error
• Station where link was stopped by a command from another station
*1
• Station where link was stopped by link special relay (SB) or link special register (SW)
*1
*1 Selecting "Forced Link Start" will start the link.
Remark
Cyclic transmission can be started and stopped with link special relay (SB) and link special register (SW). ( Page 221,
Section 11.3)
4. Select a station for starting or stopping cyclic
transmission in "Selected Status".
When GX Developer is connected to a local station, only
own station can be selected. The connected station can
be checked in "Network Status".
5. Select whether to start or stop cyclic transmission
in "Link Start/Stop Executing Contents".
Selecting "Forced Link Start" will forcibly start cyclic
transmission of the station where cyclic transmission
was stopped by a command from another station or by
link special relay (SB) or link special register (SW).
6. Click the button.
The execution status of cyclic transmission can be
checked in "Link Status".
5.
4.
6.