Mitsubishi Electric Melsec-k Instruction Manual page 37

s
1
4. PROGRAMMING
- --- --
_-._--
Local programrnab le controller
L N , 1<2H, KZCPU-SKOJ1P)l
M251
F121
F123
I I I
Turned on when data link is normal.
Signal indicating that
L
channel has completed receiving
of M (master)
+
L
(local) send data
Signal indicating that L channel has completed sending of data to M channel
Sp'ecial Temporary Memory,
I
Special Function
DA06
I
Function
0 0 0 0 0 0 B10 B9 B8 B7 B6 65 B4 83 B2 B1
I 1 I
DA07
I
M250
I
Turned on and then off when the initial program of M (master) has been received.
I
0 0 0 0
0 0
B20 B19 618 B17 616 B15 B14 B13 B12 B11
DA08
0
0 0
0 0 0 B30 B29 B28 827 B26 B25 824 B28 B22 B21
A
-
8
:
DA06 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
0
81 t o 632 correspond to machine numbers 1 to 32. Only the bit of machine number, of which
error has been detected, turns to
"I".
However, moving the RUN/STOP switch to the STOP
position is not regarded as error. In the case of reset, reset is regarded as error.
&
8
&
8
I : -
\
If the power of remote 1/0 channel or local channel has turned off or the optical fiber cable has
been broken, all of the used channel numbers are stored in the data registers. Therefore, caution
should be exercised.
8
8
&
&
For example, assume that a total of 7 units, machine numbers 1 to 7, are linked and error
i
i
has occurred in all the channels. In this case, 61 to 67 of data register DA06 all turn to "1".
i
I
6 4 3 2 1 6 8 4 2 1
I
& 1
D &
$
&
&
&
& 8
&
& &
When DA06 is monitored by a peripheral unit, 64
+
32
+
16
+
8
+
4
+
2
+
1
=
127.
36