Mitsubishi Electric Melsec A Series - Page 138

REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK)
3 - 26
3
: Compatible, : Partial change required, × : Incompatible
Special register in the case of MELSECNET (II)
master station
MELSECNET/H special register
Number Name Description Number Name Description
Compat-
ibility
Precautions for
replacement
D9211
Loop switching
count
Stored as cumulative
value
SW00CE
Loop switching
count
Accumulates and
stores the number of
loop checks
conducted.
D9212
Local station
operation status
Stores local stations in
a STOP or PAUSE
status.
SW0084
Each station CPU
RUN status
Stores the CPU
RUN status of each
station.
D9213 SW0085
D9214 SW0086
D9215 SW0087
D9216
Local station error
detection status
Stores whether each
local station has
detected any error in
other station.
None - -
Can be substituted by
SW0074 to SW0077.
D9217
D9218
D9219
D9220 Local station
parameter
mismatch
Remote I/O station
I/O assignment
error
Turns ON when a local
station or a remote I/O
station has detected
an error on the link
parameters from the
master station.
SW007C
Parameter error
status of each
station
Stores the
parameter status of
each station.
D9221 SW007D
D9222 SW007E
D9223 SW007F
D9224 Local station,
remote I/O station
initial
communication
underway
Stores stations that are
performing
communication of link
parameters.
SW0078
Parameter
communication
status of each
station
Stores the
communication
status of each
station parameters.
D9225 SW0079
D9226 SW007A
D9227 SW007B
D9228
Local station,
remote I/O station
error
Stores data link error
stations.
SW0074
Cyclic transmission
status of each
station
Stores the cyclic
transmission status
of each station.
D9229 SW0075
D9230 SW0076
D9231 SW0077
D9232
Local station and
remote I/O station
loop error
Stores the station that
detected the error on
the forward loop line
and reverse loop line.
SW0091
Forward loop status
of each station
Stores the forward
loop status of each
station.
The error on the loop
line of the forward loop
is stored.
D9233 SW0092
D9234 SW0093
D9235 SW0094
D9236 SW0095
Reverse loop
status of each
station
Stores the reverse
loop status of each
station.
The error on the loop
line of the reverse loop
is stored.
D9237 SW0096
D9238 SW0097
D9239 SW0098
D9240
Number of receive
error detection
times
Stores cumulative total
of receive errors
SW00B8 to
SW00C7
Various error
counters
Various error
counters
The error count for
each error cause is
stored.