147
Appendix D
Using with CS1-series PCs
Differences in Memory Allocation
Note the following differences in memory allocation when using the C200H-CT021 with a CS1-series PC.
CIO Area and DM Area Allocation
• The beginning word, n, of the words in the IR Area (CIO Area) allocated to the C200-CT021 changes from
n = IR 100 (400 for unit numbers A or higher) + (unit number
×
10) to
n = CIO 2000 + (unit number
×
10)
• The beginning word, m, of the words in the DM Area allocated to the C200-CT021 changes from
m = (unit number
×
100) to
m = (unit number
×
100)
Specifying the Transfer Area for High-speed Counter Set Values
The transfer area for High-speed Counter set values can be specified in the DM Area (m+3, m+4) in the follow-
ing way.
Specification Method
(Example: Linear/Circular Modes or Preset Mode)
m = (unit number
×
10)
Note
Only the CS1 memory addresses in the above table can be specified.
Area
Address in CS1 (See note.)
Specification method with DM Area allocation
PC data area
m+4, bits 00 to 03
(BCD, 1 digit)
First word
m+3, bits 00 to 15
(BCD, 4 digits)
General-purpose area in DM
Area
D00000 to D06655
0
0000 to 6655
CIO Area
CIO 0000 to CIO 0511
Note
CIO 0281 cannot be
specified.
1
0000 to 0511
Note
0281 cannot be spec-
ified.
Data Link Area
CIO 1000 to CIO 1063
2
0000 to 0063
Holding Area 1
H000 to H099
3
0000 to 0099
Holding Area 2
H100 to H127
Note
H101 cannot be
specified.
4
0000 to 0027
Note
0001 cannot be spec-
ified.
EM Area
E0_00000 to E0_06143
5
00000 to 06143
Summary of Contents for C200H-CT021
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