Telnet Setup; Httpget Program - Omega iBTX User Manual

4.3.5 Configure Access Control (continued)
Gateway Address: A gateway is a network point that acts as an entrance to another
network. A gateway is often associated with a router, which knows where to direct a
given packet of data that arrives at the gateway. If the iServer is sending packets to
another network node that is not on the same network on which the iServer is connected,
a gateway address needs to be given to the iServer. The gateway address should be the
IP address of the router connected to the same LAN to which the iServer is connected.
The iServer's default gateway address is 0.0.0.0. Consult with your IT department for
obtaining a gateway address.
Subnet Mask: It's a 32-bit number that is used to determine which part of the IP address
is the network portion and which part is the host portion. The iServer's default subnet
mask is 255.255.255.0. Consult with your IT department for obtaining a subnet mask.
Changes made in the iServer's Access Control page can be saved permanently
by pressing the Save button and power recycling the iServer (press Power
Recycle button). Pressing the Reset button will set all the fields back to their
default values.

4.4 Telnet Setup

In the Configuration page, set the Number of Connections to 1 - 5 other than 0, and use
a telnet simulation program to connect to the iServer (using Port 2000). In Continuous
mode, the telnet terminal will receive continuous data from the iServer. In Command
mode, the command can be sent to query the iServer and get a response back. Refer to
Figure 3.3.

4.5 HTTPget Program

The HTTPget software is used to send a single HTTP or TCP request to an iServer
product. In contrast, the telnet or Hyperterminal programs allow a continuous
connection with multiple requests to be sent to the iServer product.
Generally HTTPget is used for simply programming an IP address to the iServer or for
quickly obtaining a reading of from a device.
The iServer product must be configured from the configuration web page so that the
"Server Type" value is set to "Command" (This is positioned under the heading of
Terminal Server). Also the "Number of Connections" may need to be set to "0" to enable
Port 1000 (Port 1000 is for access in a non-standard terminal mode). To use Port 2000
access (where "2000" is the value stored in "Port"), the Number of Connnections should
be set to "2" for general usage. The value of 2 can later be changed to a value from 1 to
5 depending on needs for secure access or fault tolerance.
Whenever Terminal Server service (using Port 2000 by default) is required, the # of
connections must be set to a value from 1 to 5. The Terminal Server mode is the
recommended mode for the most reliable connection when operating with NEWPORT
software or with other programs supporting TCPIP communications. The Port 1000
access can be used with NEWPORT software and may be needed with some iServer
products when you need to view readings from the web page while simultaneously
collecting data through TCPIP communications.
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