Mitsubishi Q2ACPU - Page 462

App - 65
APPENDICES
Table App. 2.10. Special relay
ACPU
Special
Relay
Special
Relay after
Conversion
Special
Relay for
Modification
Name Meaning Details
Corresponding
CPU
M9235 SM1235 –
Local station,
remote I/O station
parameter error
detect status
OFF : No errors
ON : Error detection
Depends on whether or not a local or a remote I/O station
has detected any link parameter error in the master station
QnA
M9236 SM1236 –
Local station,
remote I/O station
initial
communications
status
OFF : No communications
ON : Communications
underway
Depends on the results of initial communication between a
local or remote I/O station and the master station.
(Parameter communication, etc.)
QnA
M9237 SM1237 –
Local station,
remote I/O station
error
OFF : Normal
ON : Abnormal
Depends on the error condition of a local or remote I/O
station.
QnA
M9238 SM1238 –
Local station,
remote I/O station
forward or reverse
loop error
OFF : Normal
ON : Abnormal
Depends on the error condition of the forward and reverse
loop lines of a local or a remote I/O station.
QnA
M9240 SM1240 – Link status
OFF : Online
ON : Offline, station-to-
stationtest, or self-
loopback test
Depends on whether the local station is online or offline, or is
in station-to-station test or self-loopback test mode.
QnA
M9241 SM1241 –
Forward loop line
error
OFF : Normal
ON : Abnormal
Depends on the error condition of the forward loop line.
QnA
M9242 SM1242 –
Reverse loop line
error
OFF : Normal
ON : Abnormal
Depends on the error condition of the reverse loop line.
QnA
M9243 SM1243 –
Loopback
implementation
OFF : Loopback not being
conducted
ON : Loopback
implementation
Depends on whether or not loopback is occurring at the local
station.
QnA
M9246 SM1246 – Data not received
OFF : Reception
ON : No reception
Depends on whether or not data has been received from the
master station.
QnA
M9247 SM1247 – Data not received
OFF : Reception
ON : No reception
Depends on whether or not a tier three station has received
data from its master station in a three-tier system.
QnA
M9250 SM1250 –
Parameters not
received
OFF : Reception
ON : No reception
Depends on whether or not link parameters have been
received from the master station.
QnA
M9251 SM1251 – Link relay
OFF : Normal
ON : Abnormal
Depands on the data link condition at the local station.
QnA
M9252 SM1252 – Loop test status
OFF : Not being executed
ON : Forward or reverse
loop test execution
underway
Depends on whether or not the local station is executing a
forward or a reverse loop test.
QnA
M9253 SM1253 –
Master station
operation status
OFF : RUN or STEP RUN
status
ON : STOP or PAUSE
status
Control is performed depending on whether the master
station is in the STOP or PAUSE mode.
QnA
M9254 SM1254 –
Local station other
than host station
operation status
OFF : RUN or STEP RUN
status
ON : STOP or PAUSE
status
Control is performed depending on whether a local station
other than the host is in the STOP or PAUSE mode.
QnA
M9255 SM1255 –
Local station other
than host station
error
OFF : Normal
ON : Abnormal
Depends on whether or not a local station other than the host
is in error.
QnA