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7. Troubleshooting
The troubleshooting list can help users to resolve the problems when using the GW-
7553-B / GW-7553-M. If the problem still can't be solved, please contact with
technical staff of ICP DAS.
Table 27 Errors and solutions
Item Trouble state
'PWR' LED indication of
the GW-7553-B / GW-
1
7553-M is always turned
off
'ERR' LED indication of the
2
GW-7553-B / GW-7553-M
is always turned on
'ERR' LED indication of the
3
GW-7553-B / GW-7553-M
is flashing fast
'ERR' LED indication of the
4
GW-7553-B / GW-7553-M
is flashing slow
PROFIBUS Master station
can not communicate with
the Modbus device, when
"RUN LED" of the GW-
5
7553-B / GW-7553-M is
light and "ERR LED" of the
GW-7553-B / GW-7553-M
is dark.
GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
PAGE: 118
Solution
The power supply of GW-7553-B / GW-7553-M has some
problems. Please check the wire connection of the power and the
voltage is between 10~30V
That means the GW-7553-B / GW-7553-M isn't connecting to
the PROFIBUS Master station. Please check the wire connection
and the PROFIBUS Master station. The configuration and
address of GW-7553-B / GW-7553-M in the PROFIBUS Master
station are not correct.
It means the GW-7553-B / GW-7553-M is in setting mode and
connects with Utility. Please close Utility and set the GW-7553-
B / GW-7553-M to operation mode (please refer section 2.6
Normal/Setting DIP switch and section 4.6.2 Output data area
and communication command).
It means the GW-7553-B / GW-7553-M has diagnostic
messages. Please check diagnostic messages in the PROFIBUS
Master station.
a. Please confirm the GW-7553-B / GW-7553-M is working in
operation mode and avoid clearing diagnostic message by
communication
Normal/Setting DIP switch and section 4.6.2 Output data area
and communication command).
b. Please confirm the connection between the GW-7553-B /
GW-7553-M and Modbus device.
c. Please confirm COM Port setting (please refer section 4.3
The Configuration of the common parameters) or IP setting
(please refer section 5.5 IP setting) of the GW-7553-B / GW-
7553-M the same as the Modbus device.
d. Please confirm module ID of the GW-7553-B / GW-7553-M
(please refer section 4.3 The Configuration of the common
parameters and section 4.4 The Configuration of the modules)
the same as Modbus address of Modbus device.
e. Please confirm Setting of Start Address and NO. of
Relay/Coil is correct (please refer section 4.4 The
Configuration of the modules).
.
DC
command
(please
refer
section
2.6
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