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27: T
ROUBLESHOOTING
O
PEN
N
ET
C
ONTROLLER
U
SER
’
S
M
ANUAL
27-15
Troubleshooting Diagram 8
Turn power off at the master station, and turn
power on after a few seconds.
Is the error code
0 at all stations?
Is the
communication cable
connected to data link termi-
nals correctly?
Is M8006 on at
the master station?
NO
YES
Call IDEC for assistance.
NO
Make sure of correct wiring (see page 21-2).
END
Turn off M8006 using WindLDR.
Check error codes for the troubled
stations (see page 21-4).
For the master station, click the
Reset COMx button (see page
21-11) or turn on M8007 during
operation using WindLDR.
Are error codes
cleared to 0 at all
stations?
Reset the error codes at all stations using
WindLDR.-
Data link communication is impossible.
NO
YES
YES
YES
NO
M8006:
Data link communication prohibit flag
M8007:
Data link communication initialize flag
NO
Is
communication selector
DIP switch 1 set to
ON?
Set communication selector DIP switch 1 to ON
to select data link mode.
Did you press
the communication enable
button for 4 sec?
YES
NO
YES
Did you power
down and up after changing
the DIP switch?
NO
Press the communication enable button for
more than 4 sec until the ERROR LED blinks
once.
YES
YES
Is “Enable Data Link”
selected at the master
station?
Click the check box for “Enable Data Link” in
the WindLDR Function Area Settings and down-
load the user program again (see page 21-7).
NO
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