Mitsubishi Electric MELSEC SW1DNC-CCIEF-B User Manual page 61

RAS function
Function
Slave station disconnection
Automatic return
Loopback function
Diagnostic function
Function
CC-Link IE Field Network diagnostics
Individual board Bus I/F test
diagnostics
Memory test
Hardware test
Self-loopback test
Own network Loop test
diagnostics
Cable test
Other network Communication test
diagnostics
Other functions
Function
Reserved station specification
Reserved station function disable
Error invalid station and temporary error invalid
station setting
Event notification to program
Driver WDT function
Parameter setting function for CC-Link IE Field
Network remote device station
Description
Only the stations where an error has occurred, including slave stations, are
disconnected from the network, and the data link is continued only with the
stations operating normally. In a line topology system, stations after the station
where the error occurred are disconnected.
When a station disconnected from a network due to a data link error recovers
from the error, the station is automatically reconnected to the network and
restarts data link.
This function disconnects only faulty stations, and continues data link with only
normal stations. It also continues data link with normal stations connected
after the faulty station which is disconnected in a line topology.
Description
The status of the CC-Link IE Field Network can be checked by CC IE Field
Utility. The faulty area, cause of the fault and its corrective action, and event
history can be checked.
Check the hardware related to the bus I/F function of the CC-Link IE Field
Network board.
Check the memory of the CC-Link IE Field Network board.
Check the hardware in the CC-Link IE Field Network board.
Check the communication circuit of the transmission system of the CC-Link IE
Field Network board.
Check the network circuit status and parameter setting status of each station.
Check the connection status of the Ethernet cable.
Check whether the communication path for transient transmission from the
own station to the target station is correct.
Description
The reserved stations are included in the number of stations that will be
connected to the network in the future without actually connecting them.
Reserved stations are not detected as faulty stations even though they are not
actually connected.
Reserved stations can be temporarily disabled without changing parameters.
The master station does not detect a slave station as a faulty station even if
the slave station is disconnected during data link. This can be used when a
slave station is replaced during data link, for instance.
Event conditions are checked every link scan, and if the event conditions are
met, notifies events to the user program.
This function monitors the operation of the software (operating system, driver)
inside the hardware.
The parameters of CC-Link IE Field Network remote device station can be set
by using mdRemBufWriteEx function or mdRemBufReadEx function of
MELSEC data link library.
Reference


Page 78 Loopback
Function
Reference
5
Page 118 Diagnosing CC-
Link IE Field Network
Page 47 Bus I/F test
Page 47 Memory test
Page 48 Hardware test
Page 49 Self-loopback test
Page 54 Loop test
Page 55 Cable test
Page 56 Communication
test
Reference
• Page 75 Reserved
Station Specification
and Reserved Station
Function Disable
Function
• Page 101 Network
configuration setting
• Page 134 Reserved
station function enable
• Page 76 Error Invalid
Station and Temporary
Error Invalid Station
Setting Function
• Page 101 Network
configuration setting
• Page 135 Enable/
Disable ignore station
errors
• Page 77 Event Function
• Page 104 Event setting
Page 79 Driver WDT
function
MELSEC Data Link
Library Reference Manual
5 FUNCTIONS
59
5.1 Function List