20
3.6 LED Indication
The state of the module and that of the network can be displayed. See the description in
the following table for the LED indication.
LED
Color
Description of indication
Lit when the slave station is receiving normal data from the
master station.
RUN
Green
Unlit upon time-over.
Unlit during normal communication. (RUN is lit.)
ERR
Lit upon a transmission error (CRC error).
Blinks when there is an error in the station number setting or
transmission speed setting.
Red
Blinks upon time-over.
Up
RUN
ERR
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