Mitsubishi MELSEC-A Series Reference Manual page 254

9. PROGRAMMING
Device
Name
Number
Local station
M9232
operating status
Local station error
M9233
detected
Local station
M9235 parameter error
detected
Local station initial
M9236 communications
status
M9237 Local station error
Table 9.2 MELSECNET/B special link relays list (Continued)
Data
OFF : RUN or • ON/OFF status depends on the operation status of the local station.
STEP RUN • Turned ON when the status of any local station in the loop changes to
status STOP or PAUSE.
ON : STOP or • Turned OFF automatically when the status of all local stations changes to
PAUSE RUN or STEP RUN. (That is, M9232 is turned OFF when bits D9212 to
status D9215 are all OFF.)
• Turned ON when a local station in the executed loop detects an error in
OFF : No error another station (M9255 ON).
ON : Error • Automatically turned OFF when the faulty station is returned to the normal
detected state. (That is, M9233 is turned OFF when bits D9216 to D9219 are all
OFF.)
• Turned ON when the bit device range (link relays and link registers) outside
OFF : No error the range allocated to a master station for the lower tier is allocated with the
ON : Error link parameters for the lower tier.
detected • Turned OFF when the error is eliminated by correcting the link parameters.
(That is, M9235 is turned OFF when bits D9220 and D9221 are all OFF.)
OFF : Not • Turned ON while a local station is communicating the initial setting data
communi- (link parameters) to a master station to execute data link processing.
cating • Automatically turned OFF when the communication for initial data setting
ON : Communi- has been completed. (That is, M9236 is turned OFF when bits D9224 and
cating D9225 are all OFF.)
• Turned ON when an error occurs at one local station within the loop.
(The relay is turned ON while a station-to-station test is being executed for
OFF : Normal
a local station and the data link is operating.)
ON : Error
• Automatically turned OFF when the faulty station returns to normal. (That
is, M9237 is turned OFF when bits D9228 and D9229 are all OFF.)
Description
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