Mitsubishi Electric MELSEC Q80BD-J71GF11-T2, User Manual

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5 FUNCTIONS
5.1 Function List
59
5
RAS function
Diagnostic function
Other functions
Function Description Reference
Slave station disconnection 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.

Automatic return 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.

Loopback function 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. Page 78 Loopback
Function
Function Description Reference
CC-Link IE Field Network diagnostics 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. Page 118 Diagnosing CC-
Link IE Field Network
Individual board
diagnostics Bus I/F test Check the hardware related to the bus I/F function of the CC-Link IE Field
Network board. Page 47 Bus I/F test
Memory test Check the memory of the CC-Link IE Field Network board. Page 47 Memory test
Hardware test Check the hardware in the CC-Link IE Field Network board. Page 48 Hardware test
Self-loopback test Check the communication circuit of the transmission system of the CC-Link IE
Field Network board. Page 49 Self-loopback test
Own network
diagnostics Loop test Check the network circuit status and parameter setting status of each station. Page 54 Loop test
Cable test Check the connection status of the Ethernet cable. Page 55 Cable test
Other network
diagnostics Communication test Check whether the communication path for transient transmission from the
own station to the target station is correct. Page 56 Communication
test
Function Description Reference
Reserved station specification 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. • Page 75 Reserved
Station Specification
and Reserved Station
Function Disable
Function
• Page 101 Network
configuration setting
• Page 134 Reserved
station function enable
Reserved station function disable Reserved stations can be temporarily disabled without changing parameters.
Error invalid station and temporary error invalid
station setting 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. • Page 76 Error Invalid
Station and Temporary
Error Invalid Station
Setting Function
• Page 101 Network
configuration setting
• Page 135 Enable/
Disable ignore station
errors
Event notification to program Event conditions are checked every link scan, and if the event conditions are
met, notifies events to the user program. • Page 77 Event Function
• Page 104 Event setting
Driver WDT function This function monitors the operation of the software (operating system, driver)
inside the hardware. Page 79 Driver WDT
function
Parameter setting function for CC-Link IE Field
Network remote device station 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. MELSEC Data Link
Library Reference Manual