PROFIBUS DP Communication
‑180‑
Indicator※
Status
Symptom
Solution
Yellow (D3)
Blinking at 5 Hz
The master is not
running.
Check the master state.
Yellow (D3)
OFF
The connection
between the MD38DP2
expansion card and the
PROFIBUS master fails.
Check that the slave
address is correct and the
PROFIBUS cable is
connected properly.
Note
Note※: For some products, the indicator color and the terminal symbol may not match. In
this case, the terminal symbol prevails. The indicators are D2, D3, and D4 from left to right.
See " "
on page
.
Troubleshooting for GSD Installation Failure
● Symptom 1: The GSD file cannot be installed or updated when STEP 7 is used, as
shown in the following figure.
Possible cause: The current hardware configuration has been opened and the GSD
file is being used by other components.
Solution: Close the current configuration interface by clicking the X button
(marked with a red circle in the following figure). Then, install or update the GSD
file and open the configuration interface again.
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