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189
Lamps, Touch Switches, Numeral Setting
Section 5-3
S
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
Allocated
CVM1/CV Series PCs
Allocated
DM
Data Memory
f
Data Memory
f
CH
Internal/Special Relay
f
Internal/Special Relay
f
TIM
Timer
Timer
CNT
Counter
Counter
HR
Holding Relay
f
–
AR
Auxiliary Relay
f
Auxiliary Relay
LR
Link Relay
f
–
f
: OK
: NG
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 278 of the APPENDICES) for more details.
Procedure
1. Use the support tool to allocate the PT status notify area (PT
→
PC) to the PC
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.
Summary of Contents for NT20S
Page 1: ...Cat No V020 E1 04 NT20S Programmable Terminal OPERATION MANUAL ...
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Page 4: ...iii NT series Programmable Terminal Operation Manual Revised August 1997 ...
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