286
Memory Tables
Section 7-3
S Allocated words
Numeral memory tables can be allocated either to 1 word or two words at the
host.
Numeral memory tables can be allocated to the following host (PC) areas.
Symbol C Series PCs Allocation CVM1/CV Series PCs Allocation CS1 Series PCs Allocation
DM Data memory 3 Data memory 3 Data memory 3
CH I/O relay 3 I/O relay 3 I/O relay 3
TIM Timer present value n1 Timer present value n1 Timer present value n1
CNT Counter present value n1 Counter present value n1 Counter present value n1
HR Holding relay 3 – – Holding relay
AR Auxiliary relay 3 Special auxiliary relay Special auxiliary relay
LR Link relay 3 – – – –
EM EM Current Bank
*1
*2
3 EM Current Bank
*2
n2 EM Current Bank
*2
3
3: OK : NG n1 :Available for 1 word n2: Host link not available
*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).
Since the special auxiliary relays of the CVM1/CV series PCs are all allocated to
system functions, they cannot be used for purposes other than system use.
Since the special auxiliary relays of the CVM1/CV series PCs are all allocated to
system functions, they cannot be used for purposes other than system use.
The range of each memory area differs according to the PC type. Refer to AP-
PENDIX L “PC Memory Map”, page 684.
The relationships among the allocated words, the number of allocated words,
and the contents of numeral memory tables are indicated in the figure below.
- When the number of allocated words is 1 word
0000162E
Numeral memory table
Only four digits read
← Allocated word
(Decimal number 5678)
PC
NT31/NT31C
5678
1234
- When the number of allocated words is two words
00BC614E
Numeral memory table
PC
NT31/NT31C
5678
1234
(Decimal number 12345678)
Eight digits read
← Allocated word
To Next Page
Loading...
Need help?
General
