5.
After this is done, close the DL32 Configuration software and press Reset on the
DL4500 to put it online.
5.4 Allan-Bradley
Network
Configuration
The DH+ or DH-485 requires that every station on the network has its own node address.
This section describes the configuration of the DL4500 for the desired A-B network.
5.4.1 DH+ Node Address
The DH+ network allows up to 64 nodes on a network with addresses ranging from 0 to
63 decimal. The DL4500 DH+ node address is determined from the last octet of the IP
address assigned to the unit. The following table shows how the DH+ node address is
determined from the last octet of the IP address.
Node Address
Last Octet of IP address
0-63 0-63
0-63 64-127
0-63 128-191
0-63 192-255
If the last octet of the IP address is larger than 63, subtract 64 from the value until it falls
within the range of 0 to 63. This will be the DH+ node address in decimal. Since DH+
uses octal notation, a conversion decimal to octal will be needed.
Ex.
DL4500 with IP Address 192.168.2.170
Solution
Take the last octet and subtract and keep subtracting 64
until the value falls within the range of 0 to 63.
42
64
64
170
=
−
−
The DH+ node address is 42 decimal or 52 octal.
5.4.2 DH+
Baud
Rate
The DH+ Baud rate on the DL4500 is auto detecting; whatever the existing network is set
to the DL4500 will use that baud rate. Valid rates of 57.6K, 115.2K and 230.4K Baud
are supported.
On Hardware Reset the A-B Network LED will flash GREEN and RED until a valid
DH+ network is detected. This is the AUTO BAUD Rate detection Mode and the
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