Mitsubishi Electric Melsec A Series, Руководство пользователя

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49
(15) LEDs for indicating operation status and errors
LED Name Description
LED
Name
Description
RUN
Comes ON when the data link
is normal.
S0
SD
Remains ON while data is
sent.
S1
RD
Remains ON while data is
received.
S2
Not used (always OFF) S3
CRC
Comes ON when a code
check error occurs.
S4
S5
OVER
Comes ON when a data entry
delay error occurs.
S6
AB. IF
Comes ON when data is all
"1".
S7
Not used
(These LEDs flash
during execution of
data link. This is not an
abnormal condition)
TIME
Comes ON when a time-out
occurs.
DATA
Comes ON when a receive
data error occurs.
F.LOOP
Comes ON when the
forward loop serves as
the data receiving line,
or goes OFF when the
reverse loop is used for
it.
UNDER
Comes ON when a send data
error occurs.
CPU R/W
Comes ON during
communications with
the PC CPU.
F. LOOP
Comes ON when a forward
loop receive data error occurs.
Not used (always OFF)
Not used (always OFF) R..
LOOP Comes ON when a reverse
loop receive data error occurs. 10
1 20
2 40
Indicate the figures at
the ten's digit of the
station numbers in
BCD codes.
4 Not used (always OFF)
8
Indicate the figures at the
one's digit of the station
numbers in BCD.
(16) Station number setting switches
z
Station numbers from 00 to 64 can be set.
z
The "X10" switch is to set the ten's digit of a station number.
z
The "X1" switch is to set the one's digit of a station number.
z
To use a station as the master station, set "00".
z
To use a station as a local station, set between "01" and "64".