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2-6
Section
Lamps
109
Allocated Bit
Lamp bits can be allocated to the following host (PC) areas.
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
n
C
TC Area,
Counter PVs
Counter Area,
Counter PVs
TC Area,
Counter PVs
CU
---
---
---
---
TC Area,
Counter Completion Flags
n
W
---
---
---
---
WR Area
n
TK
---
---
---
---
Task Flags
n
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.
When a DM Area or EM Area address is specified, add a bit number (00 to 15) to
the end of the word address.
Lamps read the contents of a bit at the host and execute processing in accor-
dance with the bit status.
However, the bit is only read in the following case:
When a lamp is used on the currently displayed screen
Lamps have no output function.
Lamps have no data processing function.
Relationship with Other Elements
•
Touch switches (page 110) have the same display functions as normal (stan-
dard) lamps.
•
Lamps overlap with other elements in accordance with the order in which they
were registered on the screen with the Support Tool. However, the way in
which they overlap can be changed with the Support Tool.
Input Functions
Output Functions
Processing Functions
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Summary of Contents for NT21 Series
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