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Melsec-fx - Mitsubishi Electric GT1685 Connection Manual

Got1000 series.
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2.8 MELSEC-FX

The device ranges that can be set when selecting
[MELSEC-FX] as the controller type are as follows.
Device name
Input relay (X)
X0
Output relay (Y)
Y0
Auxiliary relay (M)
M0
Special auxiliary relay (M)
M8000 to
State (S)
S0
Timer contact (T)
T0
Counter contact (C)
C0
The bit specification of the
*1
Setting range of each
word device
(except Timer (set value),
Counter (set value))
Data register (D)
D0
File register (D)
D1000 to
Special data register (D)
D8000 to
Timer (current value) (T)
T0
Counter (current value) (C) C0
*3*5
TS0
Timer (set value) (TS)
Counter (set value)
CS0
*4*5
(CS)
Extension register (R)
R0
Index register (V)
V0
Index register (Z)
Z0
*7
BM0
Buffer memory (BM)
The word specification of
*2*6
Setting range of each bit
the bit device
(except Timer contact,
Counter contact)
*1
When executing the touch switch function set during the bit
specification of the word device, do not write any data to the
word device through the sequence program.
*2
The device No. must be set in multiples of 16.
*3
Only 16-bit (1-word) designation is allowed.
*4
For CS0 to CS199, only 16-bit (1-word) designation is
allowed.
For CS200 to CS255, only 32-bit (2-word) designation is
allowed.
*5
Monitoring or writing is not possible in the continuous device
designation mode.
In addition, setting values of the timer and counter, which are
not used for the program, cannot be monitored. If monitoring
is executed, a reading error occurs.
*6
This is not supported by GT10.
*7
Can be used only for special blocks or special units
compatible with FX
, FX
1N
FX
, FX
.
3U
3UC
(Except FX
-3A, FX
0N
2N
POINT
POINT
POINT
(1) Precautions when using the buffer memory
• When the power supply of the special block or
special module is turned off, the contents of the
buffer memory are initialized, except for some
keeping areas.
• When the buffer memory is monitored by the
GOT, the PLC scan time may increase instantly.
• Use the 16 bit specification for the buffer
memory of 16 bit data. Use the 32 bit
Device No.
Setting range
representation
to
X377
Octal
to
Y377
to
M7679
M8511
to
S4095
Decimal
to
T511
to
C255
word device
to
D0999
D7999
D8511
to
T511
to
C255
to
TS511
to
CS255
Decimal
to
R32767
to
V7
to
Z7
to
BM32767
devices
, FX
, FX
, FX
, FX
,
1NC
2N
2NC
3G
3GC
-2AD, and FX
-2DA)
2N
specification for the buffer memory of 32 bit data.
If using the 16 bit specification for a buffer
memory of 32 bit data, monitoring and writing
may not be executed normally.
For the data size of each buffer memory, refer to
the following.
User's Manual of the special block or special
module
• When reading from/writing to the special block or
special module by interrupt processing of the
sequence program, monitoring/writing from GOT
to the buffer memory may not be executed
normally.
(2) How to select a keyword protection level
For equipment that are allowed to operate the FX
PLC online, 3 levels of protection level can be set.
When monitoring or changing settings by any
online equipment is required, set a keyword
referring to the following.
(a) When setting the keyword only
Select a protection level by the initial letter of
the keyword.
All operation protect: Set a keyword with the
initial letter "A", "D" to "F", or "0" to "9".
Incorrect write/read protect: Set a keyword
with the initial letter "B".
Incorrect write protect: Set a keyword with the
initial letter "C".
(b) When setting the keyword and 2nd keyword
Select a protection level by [Registration
condition].
(3) Monitoring availability at each keyword protection
level
The following shows the device monitoring
availability at each keyword protection level.
When registering the
keyword only
Item
Incorrect
All
Incorrect
write/
operation
read
protect
protect
protect
Monitoring devices
T, C set
value and
file
*1
*1
register
Changing
(D1000
devices
and the
following)
Other than
above
*1
When the T, C set values are specified indirectly, changing
devices is available.
(4) Difference between all online operations
prohibition and all operations prohibition
When specifying all online operations prohibition,
displaying devices and inputting data with
programming tools or GOT are all prohibited.
When all operations are prohibited, displaying
devices and inputting data with the GOT are
enabled while all operations using programming
tools are prohibited.
2. DEVICE RANGE THAT CAN BE SET
2.8 MELSEC-FX
When registering the
Keyword
keyword and 2nd
not
keyword
registered
or
All online
Read/
Write
protection
write
operation
write
protect
cancelled
protect
protect
*1
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