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5-4
Section
Numeral and Character-string Setting
221
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 sys-
tem, they cannot be used for applications not related to the system.
The range of each memory area differs according to the PC type. See Appen-
dix L “PC Memory Map” (page 327).
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.
S
Disabling numeral input
Numeral input can be disabled by a PT status control area operation. For de-
tails, see 5-7 “NT620S/620C Status Control” (page 234).
Application Example
This example shows the reading of the numeral memory table number after a
value has been changed by inputting numerical data at the NT620S/620C.
S
Support tool settings
Make the following settings using the support tool.
Allocated word for the PT status notify area: CH0110
Numeral memory table entry No. 3: DM 0005 (registration word: 1)
Numeral memory table entry No. 4: DM 0006 (registration word: 1)
Data registered for the screens:
Numeral setting 1 ... Reference table “numeral memory table No. 3”
Summary of Contents for NT620C
Page 1: ...Cat No V033 E1 5 Programmable Terminals NT620S 620C OPERATION MANUAL...
Page 2: ...NT620S 620C Programmable Terminals Operation Manual Revised April 2001...
Page 3: ...iv...
Page 5: ...vi...
Page 328: ......
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