Siemens SIMATIC PN/M-Bus LINK - Diagnostic Messages to the S7 Controller; Events Triggering Diagnostic Messages

Diagnostics
10.1 Status LEDs
PN/M-Bus LINK
Operating Instructions, 03/2018, A5E44260928-AA
43
10.1.2
Connection status of the M-Bus
Connection status of the M-Bus
PN/M-Bus LINK signals its status with the M-Bus LEDs on the front of the enclosure.
Figure 10-2 Status LEDs M-Bus
Table 10- 1 Behavior of the RUN LED
RUN LED
Meaning
Note
Off
PN/M-Bus LINK is not in the RUN state --
On
PN/M-Bus LINK is in the RUN state and
is configured.
--
Flashes
PN/M-Bus LINK is in the RUN state, but
it is not configured.
--
Table 10- 2 Behavior of the ERR LED
ERR LED
Meaning
Note
Off
No error on M-Bus --
On
Error on M-Bus Diagnostics active, see Diagnostic mes-
sages to the S7 controller (Page 45)