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Appendix 1 Internal Memory
A1-1
A1
Me
mor
y
T
y
p
e
The internal memory is memory in the MONITOUCH which is available to the
user. With this internal memory, the MONITOUCH can operate quickly because
it is not necessary to transfer to or receive data from the PLC.
Memory Type
There are two different types of internal memory.
•
User memory ($u / $L / $LD)
This is the read/write memory that can be used freely.
Available range
$u:
0 to 16383 (16384 words)
$L:
User setting
$LD:
User setting
•
System memory ($s)
This is the read/write memory used by the system. This memory is used for
data communication to and from the MONITOUCH, and is mainly necessary
for macros. Do not use any unused area of this memory because it may be
employed as the system’s memory in the future.
Available range
$s:
0 to 1023 (1024 words)
Notes
1. The internal memory works with “DEC” no matter what numeric code is set in
the [Comm. Parameter] dialog.
(Except items for which the numeric code is specified individually.)
2. Character processing depends on how [Text Process] in the [Comm.
Parameters] dialog selected from the [System Setting] menu is set.
3. $u and $s are volatile memory. When the Main Menu screen is displayed or
the power is shut down (reset), data is erased.
4. $L and $LD are non-volatile memory. Data is retained if the power is shut
down. To use $L or $LD, it is necessary to use the SRAM area built in the V7
series or an accessory V7EM-S (V6EM/S or V6EM/RSi) and to make the
SRAM/clock setting.
Internal Memory
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
Содержание Monitouch V Series
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