Filter
Top Products
62
CPU Bus Unit System Setup Section 4-2
Set the local IP address in the allocated words in the DM Area when using the
CPU Bus Unit System Setup at its default settings (i.e., for simple operation).
The setting is usually made with a Programming Console.
Note 1. With CS-series Ethernet Units, set the local IP address using the 8 rotary
switches on the back of the Unit. For details, refer to Setting the Local IP
Address on page 34.
2. If no local IP address is set in either the CPU Bus Unit System Setup or the
allocated words in the DM Area (m+98 and m+99), the Ethernet Unit will
not be able to perform communications. Be sure to set the local IP address
in one of these areas. It is not possible, however, to set the following IP ad-
dresses. If any of these values are set, the ERH indicator will flash.
• IP addresses where all network number bits are 0.
• IP addresses where all host number bits are 0.
• IP addresses where all subnet number bits are 0.
• IP addresses starting with 127 (7F Hex), e.g., 127.35.21.16.
Subnet Mask
Set all bits in the subnet mask that correspond to the bits in the IP address
used for the network number and the bits used for the subnet number to “1,”
and set all bits in the subnet mask that correspond to the bits in the IP
address used for the host number to “0”. The subnet mask must be set only
when configuring a system which includes subnetworks.
If no subnet mask is set, the subnet mask will be automatically set to one of
the following values, depending on the local IP address setting:
The default is 0.0.0.0. (A value corresponding to the IP address class is used.)
FTP Login Name
Enter the user’s FTP server login name using up to 12 characters. Alphanu-
meric characters, hyphens, commas, quotation marks, and underlines can be
used in login name. Once the login name has been set, a password must also
be set or both the FTP login name and FTP password will be invalid.
Application Setting device Setting area Remarks
Operation with the
CPU Unit Bus Sys-
tem Setup set as
desired (i.e., The
default settings are
not used.)
CX-Programmer CPU Unit Bus System Setup The IP address set in the CPU
Unit Bus System Setup is
stored in the allocated words
in the DM Area.
Simple operation
(i.e., The CPU Unit
Bus System Setup is
used at its default
settings. Only the IP
address is set.)
Programming Console (CX-
Programmer can also be
used.)
Allocated words in the DM
Area
The setting in the allocated
words in the DM Area is
enabled only when the IP
address in the CPU Unit Bus
System Setup is set to
00.00.00.00.
If the IP address in the CPU
Unit Bus System Setup is set
to a value other than
00.00.00.00, this value is
stored in the allocated words
in the DM Area.
Class Subnet mask value
Class-A IP address 255.0.0.0
Class-B IP address 255.255.0.0
Class-C IP address 255.255.255.0