PROFINET Communication
‑77‑
Table 5–2 Status indicators of the MD500‑PN1 card
Indicator
State Description
Solution
DSPLINK
Steady green
Normal
N/A
Steady yellow
MAC address
abnormal
Replace the MD500‑PN1 card.
Blinking yellow AC drive faulty
Clear the AC drive fault.
Steady red
Abnormal
communication with
the AC drive
Set F0‑28 to 1 and check
whether the AC drive supports
the MD500‑PN1 card.
Blinking red
AC drive
communication
timeout
Check whether the AC drive
software version supports the
MD500‑PN1 card. Restore the
AC drive software to default
settings.
PLCLINK
Steady green
Communication
normal
N/A
Blinking green
Master not found
Check whether a device name
is assigned to the slave.
Check whether the
corresponding PLC is
connected.
Steady yellow Configuration error
Check whether the GSD is
correct.
Steady red
Communication with
the master
interrupted
Check the wiring and check
whether the shield layer of the
network cable is connected
properly.
D1 and D4 Both in red
MD500‑PN1 card
software abnormal
Power off and then power on
the equipment. Replace the
MD500‑PN1 card.
DIP switch abnormal
Check that the DIP switch S1 is
OFF and re‑power on the
equipment.
5.4 Topology
PROFINET supports a variety of topologies, including bus, star, and tree topologies.
Diversified networking modes can be implemented by using switches.
Figure 5‑4 Bus topology
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