GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual
(Version 1.35, May/2017)
PAGE: 15
LED Name
Status
Description
off
Power supply has failed.
ERR
flash
When the GW-7553-B / GW-7553-M connects with
the utility tool, it will flash fast (flash once about
55ms).
When the GW-7553-B / GW-7553-M has diagnostic
message, it will flash slowly (flash once about 220ms).
on
Connection error between PROFIBUS Master and
Slave or
PROFIBUS system has not been configured
correctly.
off
Normal operation
PROFIBUS system has been configured correctly
RUN
on
Data exchange mode
Normal operation.
off
GW-7553-B / GW-7553-M module is not in a data
exchange mode.
Figure 9 LED position
2.6 Normal/Setting DIP switch
There is a DIP switch on the back of the GW-7553-B module, as shown in
Figure 10
.