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No.EX##-OML0007
Troubleshooting
Please refer to the following flowchart if a fault occurs on the fieldbus system.
Error status is reflected by the parameter settings of a fieldbus system.
When a fault occurs, please refer to the troubleshooting and the parameter setting sections of this manual,
to ensure the appropriate action is taken.
If the cause of the fault cannot be confirmed, it is possible that the equipment may have failed. When
failure of fieldbus system equipment occurs, it is possible that the error was caused by the system
requirements. If that is the case, please consider the counter-measures accordingly.
Yes
No
Fieldbus system
does not operate
normally
Model selection
or protocol
version is wrong
Wrong selection
Fault No.7
SI unit’s LED
indicates error
ST(M) LED
is blinking
green
Digital input unit
LED indicates
error
Fault No.1
Digital output unit
LED indicates
error
Fault No.2
Manifold or unit is
damaged
Fault No.3
Fault No.4
Manifold or unit is
damaged
Unit other than SI
unit LED indicates
error
Solenoid valve does not
operate normally
Digital input equipment does
not operate normally
Fault No.5
Fault No.6
Fault No.8
Fault No.9
Analog input unit
LED indicates
error
Digital output equipment
does not operate normally
Analogue input equipment
does not operate normally