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SR and AR Area Flags
C1000H, C2000H
C1000H or C2000H CPU
Rack
Master
16 pts.
16 pts.
32 pts.
16 pts.
16 pts.
Expansion I/O Rack
Master
16 pts.
16 pts.
16 pts.
Locating the Error
Bit No.
IR 251
Multiplier #0
Slave #0
IR 5
IR 4
IR 2 & 3
IR 1
IR 0
Multiplier #1
IR 12
IR 11
IR 10
In the System depicted above, let's assume an error has occurred in IR 62 "L" of
the Optical I/O Unit (IR 30 "L" of Master with a word multiplier of 1). IR 251 shows
the following data.
15 14
13
12
11
10
O
O
1
1
O
O
3
Monitoring IR 251 with the Programming Console reveals the following data.
Indicates a remote I/O error.
Indicates transfer I/O word 030 "L" on rack #1 (Word 62 "L").
Slave Rack
32 pts.
IR 8 & 9
16 pts.
IR 7
16 pts.
IR 6
Optical I/O Units
Set Word
IR 31 "H"
IR 30 "H"
Allocated IR
IR 63 "H"
IR 62""L"
9
8
7
6
5
4
O
0
O
O
1
0
2
Section
Optical I/O
Units
Set Word
IR 31 "H"
IR 30 "H"
Allocated Word
IR 31 "H"
IR 30 "L"
3
2
1
0
O
1
O
O
O
8
7-2
85
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