DELTA LOGIC ACCON-MPI-Modem 56k User Manual page 8

LED display
The six LEDs on the front side of the device inform about the operating
state of the ACCON-MPI-Modem 56k. So sources of error can be
detected very quickly.
When the ACCON-MPI-Modem 56k is connected to the PLC a
connection with the MPI bus will be established if the initialization of the
internal modem was successful. Then the Active LED lights. If not the
initialization of the modem or the log in on the MPI bus does not work.
The device can only accept incoming connections when the Active LED
lights.
The LEDs can change to one of three possible states: ON, OFF,
BLINKING
Status LED
Adapter has no
voltage feed.
Adapter has a 24 VDC
voltage feed and is
working
Firmware update
being executed
Adapter is logged in
on at the MPI bus
Adapter is receiving
parametrization
Adapter is connected
to the PLC
Adapter is
transmitting data
Table 1: Status LEDs
ACCON-MPI-Modem 56k
Active/Param.
Power/Update
LED
OFF
ON
BLINKING
ON
ON
ON
ON
Connect/Data
LED
ON
ON
BLINKING
ON
ON BLINKING
LED
ON
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