Siemens SIMATIC RF185C Operating Instructions Manual page 115

Status LED display
The operating states of the communications module are displayed by the "RUN/STOP",
"ERROR" and "MAINT" LEDs. The LEDs can adopt the colors green, red or yellow and the
statuses off , on
Table 10- 1 Shows the operating states via the status LED display
RUN ERROR
--
-- --
-- --
--
SIMATIC RF185C, RF186C, RF188C
Operating Instructions, 10/2018, C79000-G8976-C512-01
, flashing :
MAINT Meaning
The CM is switched off.
LED test while the CM is starting up.
•
The CM is manually reset to factory settings.
•
A connected cable or a connected reader is defective.
•
No data exchange between the CM and user application takes place. The CM
•
has not yet received a user command.
The connection to the user application has been closed.
•
-- Data exchange between the CM and user application takes place. The CM has re-
ceived and executed a user command.
A firmware update is in progress.
The voltage at the CM is too low.
The flash test is performed for reader identification. At the same time, the LEDs of
•
the reader and PROFINET/Ethernet LED display also flash.
The firmware is defective.
•
-- There is an error. You can find more information on error messages in the section
"Error messages (Page 123)".
Service and maintenance
10.1 Diagnostics
115