SMC Networks EX510-DXB1, Руководство по эксплуатации

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-59-
No.EX##-OMI0032-C
Trouble No.6
Trouble Possible cause Investigation method of cause Solution
Confirm the signal line from PLC is
connected correctly.
Fix the connection.
Address setting error:
[In hardware mode]
Confirm the address setting of DIP
switch is performed correctly.
[In software mode]
Confirm the address set through
network is correct.
Fix the setting of the GW unit.
Confirm the number of I/O points are set
correctly.
Fix the setting.
Check the length of communication line
in respect to the communication speed,
presence of the terminating resistor at
both ends of transmission line and use
of PROFIBUS dedicated cable.
Fix the connection and setting.
Confirm UNIT STATUS at GW unit side
consists the one at master side.
Fix the setting.
BF LED
lights up PROFIBUS
communication error.
Confirm there is no equipment and high
voltage line which might generate a
noise around the communication line.
Take a proper measure such as
by separating the
communication line from the
noise source.
Trouble No.7
Trouble Possible cause Investigation method of cause Solution
Incorrect branch
cable connection
Confirm there is no breakage, incorrect
connection and looseness at connecting
part of the branch cable.
Fix the connection of the branch
cable.
Confirm there is no equipment and high
voltage line which might generate a
noise around the branch cable. Take a proper measure such as
by separating the branch cable
from the noise source.
Branch cable failure
Check the length of the branch cable
and use of dedicated cable.
Fix the connection.
Unconnected Input
unit Confirm the Input unit is connected after
the Input port.
It is not breakage. However, if
an Input unit is used, incorrect
connection is also possible
cause. In that case, fix the
connection.
A port COM
LED to show
the
connection
with low side
goes off
( 
∗
: COM LED of
the port set as
unused remains
off)
Broken Input unit fuse Confirm the fuse is not broken. Replace with a new one.
Trouble No.8
Trouble Possible cause Investigation method of cause Solution
Incorrect output
power supply
connection Confirm there is no incorrect connection
between output power supply and GW
unit power supply connector.
Fix the connection.
PWR(V) LED
goes off
Output power supply
failure Confirm the condition of output power
supply. Supply 24 V DC +10%/-5% for
output power supply.