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CPU Bus Unit System Setup Section 4-2
CIO Area Allocations
DM Area Allocations
4-2 CPU Bus Unit System Setup
To operate the Ethernet Unit as a node on an Ethernet network, the required
parameters must be set in the CPU Bus Unit System Setup, part of the CPU
Unit’s Parameter Areas. If any of the following items apply, then the system
parameters must be set.
• Either the IP address table or both the IP address table and automatic
address generation are used as the destination IP address conversion
method.
• Transmissions are broadcast using a host number set to all zeroes as the
broadcast address (when UNIX 4.2BSD specifications are used for the
broadcast address).
• The FINS UDP port number is set to a value other than 9600.
• With CJ-series Ethernet Units, the local IP address is set with the allo-
cated words in the DM Area.
• A subnet mask other than the one determined from the IP address is set.
• A login name other than CONFIDENTIAL is used for the FTP server func-
tion.
• Communications between segments are required.
• The mail function is used.
Newly set parameters go into effect after the Ethernet Unit has been restarted
or after the CPU Unit is started again.
The settings are made using the Unit settings on the CX-Programmer.
Note The CPU Bus Unit System Setup is located in the CPU Unit’s Parameter Area,
and not in I/O Memory; parameters cannot be written using instructions or by
editing I/O Memory. The settings can be made only using the CX-Program-
Unit No.
(decimal)
Allocated words Unit No.
(decimal)
Allocated words
0 (0) CIO 1500 to CIO 1524 8 (8) CIO 1700 to CIO 1724
1 (1) CIO 1525 to CIO 1549 9 (9) CIO 1725 to CIO 1749
2 (2) CIO 1550 to CIO 1574 A (10) CIO 1750 to CIO 1774
3 (3) CIO 1575 to CIO 1599 B (11) CIO 1775 to CIO 1799
4 (4) CIO 1600 to CIO 1624 C (12) CIO 1800 to CIO 1824
5 (5) CIO 1625 to CIO 1649 D (13) CIO 1825 to CIO 1849
6 (6) CIO 1650 to CIO 1674 E (14) CIO 1850 to CIO 1874
7 (7) CIO 1675 to CIO 1699 F (15) CIO 1875 to CIO 1899
Unit No.
(decimal)
Allocated words Unit No.
(decimal)
Allocated words
0 (0) D30000 to D30099 8 (8) D30800 to D30899
1 (1) D30100 to D30199 9 (9) D30900 to D30999
2 (2) D30200 to D30299 A (10) D31000 to D31099
3 (3) D30300 to D30399 B (11) D31100 to D31199
4 (4) D30400 to D30499 C (12) D31200 to D31299
5 (5) D30500 to D30599 D (13) D31300 to D31399
6 (6) D30600 to D30699 E (14) D31400 to D31499
7 (7) D30700 to D30799 F (15) D31500 to D31599