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Node
SYSMAC Programmable Controllers
address
CV-series PCs C200HX/HG/HE PCs C200HS PCs
Output area
(CIO 1900 to
CIO 1963)
Input area
(CIO 2000 to
CIO 2063)
Output area
(IR 50 to IR
99)
Input area
(IR 350 to IR
399)
Output area
(IR 50 to IR
81)
Input area
(IR 350 to IR
381)
0 CIO 1900 CIO 2000 IR 50 IR 350 IR 50 IR 350
1 CIO 1901 CIO 2001 IR 51 IR 351 IR 51 IR 351
2 CIO 1902 CIO 2002 IR 52 IR 352 IR 52 IR 352
... ... ... ... ... ... ...
30 CIO 1930 CIO 2030 IR 80 IR 380 IR 80 IR 380
31 CIO 1931 CIO 2031 IR 81 IR 381 IR 81 IR 381
32 CIO 1932 CIO 2032 IR 82 IR 382 --- ---
... ... ... ... ... --- ---
48 CIO 1948 CIO 2048 IR 98 IR 398 --- ---
49 CIO 1949 CIO 2049 IR 99 IR 399 --- ---
50 CIO 1950 CIO 2050 --- --- --- ---
... ... ... --- --- --- ---
62 CIO 1962 CIO 2062 --- --- --- ---
63 CIO 1963 CIO 2063 --- --- --- ---
Note 1. The words corresponding to the node address of the Master Unit are not actually used by the
Master Unit, so they can be used by other Slaves. The actual node address of the Master Unit,
however, cannot be the same as the node address of another Slave.
Note 2. When Slaves made by other companies are used that are for either output only or input only,
both the output area and the input area may be used depending on the status information.
Therefore, be sure to check the specifications of the Slave before using any word allocated to
a Slave.
H I/O Allocations and Errors
A setup error may occur when the scan list is disabled or a verification error may occur when the scan list
is enabled if I/O allocations are not correct.
D Setup Error: I/O Area Overlap
A setup error (I/O Area Overlap) will occur and it will not be possible to start CompoBus/D communica-
tions if the same word is used by more than one Slave connected to a SYSMAC Master Unit. This error
will occur only when the scan list is disabled.
To eliminate the I/O area overlap and clear this error, change the node address setting on one of the
Slaves and restart the Master Unit by turning ON the power again or restarting.
D Setup Error: I/O Area Range Violation
A setup error (I/O Area Range Violation) will occur and it will not be possible to start CompoBus/D com-
munications if node addresses are set at values that exceed the specified range, or if Slaves that use
multiple words are using more words than are specified in the I/O area. This error will occur only when
the scan list is disabled.
To eliminate the above problems and clear this error, change the node address setting on the Slaves
and restart the Master Unit by turning ON the power again or restarting.
CompoBus/D System Startup Chapter 4