Weidmuller WI-GTWY-9 User Manual page 123

WI-GTWY-9-xxx Wireless Gateway
255) separated by periods, where each integer represents the binary value of one byte in the IP
address. This is called dotted-decimal notation. Example: 169.254.100.175
Subnet Mask
An IP Address is divided into two main parts subnet ID and host ID. All devices on the same
local network must have the same subnet ID, but a unique host ID. To separate these two parts a
subnet mask is used. In its simplest form, the subnet mask is a four byte pattern where a value of
255 allocates the corresponding byte of the IP Address to the subnet ID, and a value of 0
allocates the corresponding byte of the IP Address to the host ID.
For example, a common subnet mask is shown in the example below. Looking at the IP Address
located directly above the Subnet Mask in this example, it can be seen that the IP Address values
directly above a subnet mask value of 255 correspond to the subnet ID. Conversely, the IP
Address values directly above a subnet mask value of 0 correspond to the host ID. So, in this
example, the subnet ID is 169.254.100 and the host ID is 175.
Special case IP addresses
Devices on an Ethernet network are not allowed to be configured to the following IP addresses;
therefore do not configure the module to use any of them.
0.x.x.x - IP address where the first byte is zero
x.x.x.0 - IP address where the last byte is zero
Gateway
The Gateway IP is the IP address of the LAN server or the host device.
Connect Timeout
The Connect Timeout parameter in the IP addressing section of the display refers to the IP
functionality of the module. If an IP connection to the module has not been active for this
127.x.x.x - IP address where the first byte is 127
x.x.x.255 - IP address where the last byte is 255
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