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17 Ethernet Option Board
17-4-2 CIO Area Allocation
The memory allocation about communication services status in the CIO area of PLC is shown as the
following diagram. The range of the CIO area is CIO80 to CIO82.
Offset
D15
CIO 80
Service Status
CIO 81
Error Status
CIO 82
FINS/TCP Connection Status
Service Status
15 14 13 12 11 10
CIO 80
1
Bit
0 to 13
Reserved
14
Link Status
15
Reserved
Precautions for Correct Use
Precautions for Correct Use
Bit 15 is used for detect power condition of PLC, so do not change it at any time. Otherwise the
CP1W-CIF41 Ethernet Option Board will generate error.
17-30
9
8
7
0
0
0
0
0
0
0
Name
Always 0.
0: The link between hubs is terminated.
1: A link is established between hubs.
Always 1.
D0
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Unit operation
CP1E CPU Unit Software User's Manual(W480)
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