Mitsubishi LJ61BT11 User Manual page 337

Description of problem
E1-1
Unable to read/write
cyclic data
E1-2
Unable to read/write
E2-1
word data
Unable to read/write
cyclic data at the low E3-1
order area.
Unable to RY-output. E4-1
Unable to operate at
the number of
occupied stations E5-1
specified by the local
station.
15 - 16
(3) Problems on abnormal cyclic data of an intelligent device station
(local station)
Check item
Is the automatic refresh set
properly?
(RX, RY, RWw, RWr, SB, SW)
Refresh data area
Is the access to buffer memory
correct?
(RX, RY, RWw, RWr, SB, SW)
Is there any fault in the reserved
Parameter setting
station setting?
Is there any fault in the
Parameter setting
consistency with the parameter?
Is there any fault in the
Parameter setting
consistency with the parameter?
Is the refresh instruction
Refresh instruction
(SB0003) executed?
Does the module version support
Function version settings with 2 or 3 occupied
stations?
Check contents
Check if there is no overlapping
with devices used in the program
or in other networks.
Check if there is no overlapping
with devices used in the program
or in other networks, in the
master station.
Check if there is no overlapping
with devices used in the program
or in other networks, in local
stations.
Check if the reserved station is
not set or the corresponding
station bits (SW0074 to SW0077)
are not set to "1".
Check if any remote I/O station is
installed to the corresponding
station number.
Check if any device, which
number of occupied stations is
small, is installed to the
corresponding station number.
Check if the refresh instruction
(SB0003) is turned on.
Check if the used module is either
of the followings:
• L series master/local module
• QJ61BT11N
• A1SJ61BT11, A1SJ61QBT11
(hardware version G or later)
15 TROUBLESHOOTING
Check procedure
Set so as not to overlap with
devices used in the program or in
other networks.
Access the corresponding
address of the master station.
Set so as not to overlap with the
device used in the program.
Access the normal address at the
local station side.
Set so as not to overlap with the
device used in the program.
Release the reserved station
setting.
Combine the parameter and the
installed model.
Combine the number of occupied
stations of the parameter and
installed model.
Turn on the refresh instruction
(SB0003).
Use a master module of the
supported version.
Set to the 1 station occupied or 4
stations occupied.
Corrective action
15 - 16