REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK)
4 - 19
4
: Compatible, : Partial change required, ×: Incompatible
(b) Link special register (SW)
: Compatible, : Partial change required, ×: Incompatible
AnN/AnA/AnSCPU
MELSECNET/10 module
QCPU
MELSECNET/H module
Compat-
ibility
Precautions for replacement
Number Name Description Number Name Description
M9252 Loop test status
OFF : Not being
executed
ON : Forward loop
test/reverse
loop test
execution
underway
SB00AE
Offline testing
response
designation
OFF : No response
ON : Response
M9253
Control station
operation status
OFF : RUN or STEP
RUN
ON : STOP or
PAUSE
SW0084
to
SW0087
Each station
CPU RUN
status
Stores the CPU RUN
status of each station.
(Including the host)
M9254
Other station
operation status
OFF : All stations are
in the RUN or
STEP RUN
status
ON : Any station in
the STOP or
PAUSE status
exist
SB0084
Each station
CPU RUN
status
OFF : All stations are
in the RUN or
STEP RUN
status
ON : Station in the
STOP or
PAUSE status
exist (including
the host)
M9255
Other station
communication
status
OFF : All stations
normal
ON : Any error
station
identified
SB0074
Cyclic
transmission
status of each
station
OFF : All stations are
executing data
linking
ON : Stations that
are not
executing data
linking exist
AnN/AnA/AnSCPU
MELSECNET/10 module
QCPU
MELSECNET/H module
Compat-
ibility
Precautions for replacement
Number Name Description Number Name Description
D9243
Host station
number
Stores the station
number of the host.
SW0042 Station No.
Stores the station
number of the host.
D9244
Maximum
station No.
Stores the maximum
station No. set in
network parameters.
SW0059
Total number of
link stations
Stores the total
number of link
stations set in
network parameters.
D9245
Communication
error count
Accumulates and
stores the
communication error
times.
SW00B8
to
SW00C7
Error counters
Accumulates and
stores the various
error time.
The error count for each error
cause is stored.
D9248
to
D9251
Other station
CPU RUN
status
Stores the CPU RUN
status of other station.
SW0084
to
SW0087
Each station
CPU RUN
status
Stores the RUN
status of each station.
(Including the host)
D9252
to
D9255
Data link status
of other station
Stores the data link
status of other station.
SW0074
to
SW0077
Cyclic
transmission
status of each
station
Stores the cyclic
transmission status of
each station.
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