Mitsubishi Electric RD77GF8 User Manual page 120

■Procedure
The execution status of cyclic transmission can be checked in "Link Status".
■When the CPU module is reset or the system is powered off and on
Even if cyclic transmission has been stopped by this function, it will restart.
■When 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-Link IE Field Network diagnostics window even after
data link has been stopped. Check the data link status in "Data link error status of own station" (SB0049).
■When the safety communication function is used in a system using the Safety CPU
When the cyclic transmission with the remote device station (safety station) is stopped during safety communications with the
remote device station (safety station), safety communications with the remote device station (safety station) where cyclic
transmission was stopped is also stopped and an error will occur.
When the cyclic transmission of the master station (safety station) is stopped, safety communications with all the remote
device stations (safety stations) is stopped and an error will occur.
■Stations to which the link start cannot be executed
The link start cannot be executed to the following stations.
• Station where cyclic transmission was stopped due to an error
• Station where link was stopped by a command from another station
• Station where link was stopped by link special relay (SB) or link special register (SW)
*1 Selecting "Forced Link Start" will start the link.
4 TROUBLESHOOTING
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4.3 Checking the Network Status
1.
Click the [Link Start/Stop] button in the "CC-Link IE Field
Diagnostics" window. Or right-click a module icon in
"Network Status" and click [Link Start/Stop].
"Link Start/Stop" window is displayed.
2.
Select a station for starting or stopping cyclic
transmission in "Selected Status".
When the engineering tool is connected to a local station, only
the own station can be selected. The station to which the
engineering tool is connected can be checked in "Connected
Station Information".
3.
Select whether to start or stop cyclic transmission in
"Link Start/Stop Execution Details (Execution Content)".
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).
4.
Click the [Execute] button.
*1
*1