Omron NT31 Operation Manuals page 303

Memory Tables
[Common Attributes]
Symbol C Series PCs
DM Data memory
CH I/O relay
TIM Timer present value
CNT Counter present value
HR Holding relay
AR Auxiliary relay
LR Link relay
EM EM Current Bank
292
Character string memory tables have the following properties.
Property
Value
Alphanumerics and symbols, Marks
Character string in the initial status after the contents of the character
string memory table have been initialized.
Initial
Check mark (initialize)/No check mark (do not initialize)
This setting determines whether or not the allocated words at the host are
initialized when the power to the NT31/NT31C is turned ON, when the
NT31/NT31C is reset, and on transition from the System Menu to the RUN
mode.
"Initialization" here means initialization of the allocated words at the host:
when a check mark is set, the previous character string memory table
contents are written to the host words. When no check mark is set, the
data at the host is read and set in the character string memory tables.
PC
Any word address at the host
Address
Host word(s) to which the character string memory table is allocated
Designate the first (lower) word.
For details, refer to "Allocated words (page 292).
Words
1 to 20
The number of words used at the host when a character string memory
table is allocated to the host.
For details, refer to "Allocated words" (page 292).
I/O
Up to 16 characters of text
Comment
Comment that describes the contents of a character string memory table
S Allocated words
Character string memory tables can be allocated to 1 to 20 words at the host.
Character string memory tables can be allocated to the following host (PC)
areas.
Allocation CVM1/CV Series PCs
3
Data memory
3
I/O relay
Timer present value
Counter present value
3
–
3
Special auxiliary relay
3
–
3
*1 *2
EM Current Bank
*1 : EM (Extended data memory) of C series is available only with C200HX/HG/HE (–Z).
*2 : Only current bank can be allocated for EM (Extended data memory).
Possible Settings
Meaning
Allocation CS1 Series PCs
3
Data memory
3
I/O relay
Timer present value
Counter present value
– Holding relay
Special auxiliary relay
– –
n
*2
EM Current Bank
3: OK
: NG
Section 7-3
Allocation
3
3
–
3
*2
n: Host link not available