Mitsubishi Electric MELSEC-A Series Manual page 160

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