GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual
(Version 1.60, May/2017)
PAGE: 17
LED Name
Status
Description
off
Power supply has failed.
ERR
flash
When the GW-7552-B / GW-7552-M connects with
the utility tool, it will flash fast (flash once about
55ms).
When the GW-7552-B / GW-7552-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-7552-B / GW-7552-M module is not in a data
exchange mode.
Figure 13 LED position
2.6 Normal/Setting Dip Switch
There is a dip switch on the back of the GW-7552-B module, as shown in
Figure 14
.
The dip switch is used to set the GW-7552-B module works in operation mode or
setting mode. In the normal situation, it needs to set the dip switch to the “Normal”
position. In this case, the GW-7552-B module can communicate with Modbus devices.
When the user sets the dip switch to the “Setting” position, the GW-7552-B module