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10.1.6
Diagnostics via the LED display
The operating states of the optical reader are indicated by the LEDs "POWER" (PWR),
"ERROR" (ER), "RUN/STOP" (R/S), "LINK" (LK), "CONNECT" and "READ". The LEDs can
adopt the colors green, red or yellow and the states off , on
Table 10- 5
Display of operating states
LED
Meaning
labeling
PWR
Green flashing:
Signals the startup phase after switching
•
on the optical reader.
Indicates an active firmware update that
•
must not be interrupted.
Green, permanently on:
The optical reader is ready for operation
ER
Red, permanently on:
The optical reader is in "Group error" mode
Possible causes when working with onboard
PROFINET IO:
Bus communication is interrupted.
•
Bus error (no physical connection to a
•
subnet / switch).
Wrong transmission speed,
•
Full duplex transmission is not enabled.
The IP address is incorrect.
•
Bad configuration.
•
Bad parameter assignment.
•
Bad or missing device name.
•
I/O controller not available / switched off.
•
R/S
Permanently off:
The optical reader is in "Stop" mode.
Green, permanently on:
The optical reader is in "RUN" mode.
LK
Permanently off:
There is no Ethernet connection to the opti-
cal reader.
Green, permanently on:
An Ethernet connection without data traffic is
available.
Green flashing:
The optical reader is exchanging data.
SIMATIC MV500
Operating Instructions, 05/2019, C79000-G8976-C494-02
10.1 Error and diagnostics messages
Description and corrective measures
Wait until this is completed and the optical reader is opera-
tional.
No error
Start the WBM to view the error message. Perform the
suggested corrective measures in the section "Error mes-
sages (Page 176)".
Check whether the IP address or device name occurs
•
more than once in the network.
Check the settings of the I/O controller.
•
No error
No error
Check the connection to the Ethernet cable.
•
Check whether the connected switch or other communi-
•
cations partner is operational.
Check or replace the Ethernet cable.
•
In order to start the WBM of the optical reader, you also
need a valid network configuration for TCP/IP. Here, for
example, you can use the Primary Setup Tool to create a
valid network configuration for TCP/IP.
No error
Service and maintenance
, flashing :
185
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