Owner`s manual

M SERIES DAC

BASE UNIT AND MODULE OPERATION

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8) “Rtel”----Reverse Telnet Operation. When users want to prevent

V71, V93A, or service port users from gaining access to the network

through the V72/V72TP, the reverse Telnet feature may be disabled.

The default setting for “Rtel” (Reverse Telnet Operation) Is enabled.

V72 HOST CONNECTION

The V72 host module requires a physical network connection to perform data

acquisition and control functions with the M-Series modules. The V72 supports

10BASE2 or 10BASE-T Ethernet connections with Ethernet II or 802.3 SNAP framing.

IP version 4 is required and TCP connections may be established to the TELNET via A

TELNET client or any ephemeral port (port number above 1024). The latter form of

connection requires the user to develop workstation code, but allows for automated unit

access and disposition of data. Use the following procedure to access the M-Series

modules through the V72 host module:

1. Open a session to the V72 module using any workstation TELNET

client or ephemeral You will be presented with a welcome screen (if

enabled) and a login prompt (if enabled) upon successful

establishment of the session similar to the following:

M-Series V72 DAC Host

Unit: 1 Module: 1

Bay Technical Associates

To login, enter password.

NOTE: You will not get the welcome message and/or the login prompt if

either one of these options are disabled in configuration mode.

2. Enter the password at the login prompt (if enabled).

3. If the login procedure is enabled, you will receive a "Login

Successful" message and a prompt to enter a selection if the

password is successfully entered. At this point, you may configure

modules, connect to ports, receive messages, etc.. The V72 can route

data from a peripheral communications module operating in

Immediate Message mode or Immediate Data mode to one and only

one network workstation. A network workstation must send a

command to the V72 module to receive messages or data. This

command consists of the port select code ($BT - default), capital "I",