Mitsubishi Electric MELSEC-A User Manual page 57

3. SPECIFICATIONS
MELSEC-A
I t 8H Mode setling stale storage area ' 0 (mode 0)
A
A ~ A
119H Mode chanae s~ecification area
,
0 (no switchilw) ' 5 o o l o
control specification area
(DTWDSR control ard DC code control)
I I BH.
I
DCtIDC3 control code specification area 1311H
I
o
1 0
1 0
I
Mode setling switctVstation number setting switch status , -
EH. storage area
11
CH.
t t DH
11 FH. l~ransmission specification setting switch status storage area
-
I
A
I A ~ I
DC2IDC4 control code specification area
1412H
The o,
A,
and -symbols in the table indicate the following:
o: PC CPUs and computers can readlwrite fromlto this area.
A:
PC CPUs and computers can only read from this area.
-:
PC CPUs and computers do not need to readlwrite fromlto this area.
1 0
7FFH
'1: The unit of the transmission (sendlreceive) data in the no-protocol mode or bidirectional
mode or of the send data when the on-demand function of the dedicated protocol is used.
'2: Set this when the RS-232C interface is set to half-duplex communications.
.3: Areas should be allocated so that they do not overlap with each other when (a) data is
transmitted in the no-protocol mode or bidirectional mode, or (b) when more than one
function of data transmission using the on-demand function of the dedicated protocol is
used.
'4: Change the default values marked by the dot symbol ( . ) attached to the right of the address
only when the READY signal of the AJ71UC24 is turned ON after the power is turned ON
or the PC CPU is reset.
Or change the default values when the higher bytes of the buffer's mode switching
designation area (address 119H) change into 02H after the AJ71UC24 READY signal is
turned ON by switching the mode of the AJ71UC24.
+5 0
is stored before switching the mode.
The values (1 H to DH) of the mode number that correspond to the current mode are stored
after switching the mode.
1H to DH correspond to the set values (1 to D) of the mode setting switch (see Section
4.3.1).
o
O m
o
RS-232C simal data storace area
-
User area (1760 words)
0
A
0'3
A ,
A
0
' 3
,
0
'3