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2-2
Section
Areas for Control/Notification
56
Symbol
C-series PCs
Allocation
CV-series PCs
Allocation
CS1-series PCs
Allocation
None
IR Area
f
CIO Area
f
CIO Area
f
H
HR Area
f
---
---
HR Area
n
A
AR Area
f
Auxiliary Area
AR Area
f
L
LR Area
f
---
---
LR Area
*1
n
T
TC Area,
Timer PVs
Timer Area,
Timer PVs
TC Area,
Timer PVs
TU
---
---
---
---
TC Area,
Timer Completion Flags
C
TC Area,
Counter PVs
Counter Area,
Counter PVs
TC Area,
Counter PVs
CU
---
---
---
---
TC Area,
Counter Completion Flags
W
---
---
---
---
WR Area
n
TK
---
---
---
---
Task Flags
D
DM Area
f
DM Area
f
DM Area
f
E
EM Area
*2
,
current bank
f
EM Area,
current bank
n
EM Area,
current bank
n
E0_ to
EC_
---
---
---
---
EM Area,
EM banks 0 to C
n
f
: OK
: NG
n
: Host link not available
*1: Words LR 00000 to LR 00199 are converted to CIO 01000 to CIO 01199.
*2: The EM Area is valid for the C200HX/HG/HE (-Z)E PCs only.
The Auxiliary Area of the CVM1 and CV-series PCs is allocated to system func-
tions, and it cannot be used for purposes other than system use.
The range of each memory area differs according to the PC. Refer to
Appendix D
PC Memory Maps on page 429.
Functions of the PT Status Notify Area
Reference:
When the PT is set to NT30/620 compatible mode, there are 3 words in the PC
status notify area instead of 2 words. The added first word indicates which screen
is currently being displayed at the PT and the original two words are shifted
down. Refer to
Appendix C for details on the NT30/620 compatible mode.
Updated Memory Table Number
When the contents of a numeral/character string memory table have been
changed by operation at the PT, the number of the memory table subject to the
change is written to the content update memory table number word as a 4-digit
BCD or hexadecimal value. Whether the value is expressed in BCD or hexadeci-
mal is determined by the setting for numeral storage type in the PT configuration
settings made with the Support Tool. The classification of memory table can be
determined by whether the numeral setting strobe flag or character string setting
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Summary of Contents for NT21 Series
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