Omron NT-series Operation Manual page 204

' 4  -  4     
Word
m+1
m+2
Reference
Procedure 1. Use the support tool to allocate the PT status notify area (PT
["Content upgrade memory table" in the PT status notify area and PT status]
15 14 13 12 11 10 9 8 7 6
0 Numerl memory table # (BCD, 3 digits)
PT status
15 14 13 12 11 10
-- 0 -- -- 0
Numeral memory table #: 000 to 511
Data is written to the content upgrade memory table as three digits of BCD (binary
coded decimal) data.
When the numeral setting strobe flag bit has been notified to the PC it returns to the
OFF (0) status.
For details on the method for storing a number in the word allocated for the numer-
al table, see "Allocation Words and Display of the Memory Tables" (page 167).

Restrictions on allocating words
The PT status notify area can be allocated to the PC memory areas listed in the
following table.
Symbol C Series PCs
DM Data memory
CH Internal/Special Relay
TIM Timer
CNT Counter
HR Holding Relay
AR Auxiliary Relay
LR Link Relay
Since all the CVM1/CV-series special auxiliary relays are allocated to the system,
they cannot be used for applications not related to the system.
The range of each memory area differs according to the PC type. See "Appendix L
PC Memory Map" (page 291) for more details.
memory.
2. Using the support tool, create a numeral setting screen and allocate the nu-
meral memory table to the PC memory.
3. Create a PC program for reading the "content upgrade memory table" in the
PT status notify area when the numeral setting strobe flag in the PT status
notify area comes ON (1).
4. Read the allocated word for the numeral memory table number read in step 3.
5 4 3 2 1 0 Bit
Content upgrade memory table
PT status
0 0
9 8 Bit
PT status
0 0
Numeral setting strobe flag
Allocated CVM1/CV Series PCs
Data memory
Internal/Special Relay


Timer


Counter
--
Auxiliary Relay
--
Section 5-3
Allocated








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PC) to the PC