Setup guide

Chapter 3 Driver and Protocol Objects
Object Reference Manual 3-6 www.Automationdirect.com
For this reason, if you are using a memory manager such as EMM386 it
is important to add a memory exclusion statement to your
CONFIG.SYS
file. The table on the following page lists base memory address selections
and corresponding exclusions for all legal memory addresses for the
1784-KT card.
Use Max node address to maximize the performance of a DH485 network
by assigning addresses to nodes on the network using consecutive numbers
starting with zero. Set the Max node address to the maximum of the
assigned node addresses. By default, the value of this variable is 31, which
is the largest legal address for any node on a DH485 network.
The 1784-KT interface card has on-board network termination resistors.
If you are using such a card and if your computer is the last node on the
network and if the cable does not already have a terminating resistor on it,
then select the Enable link termination resistor check box.
Use the Card exists in this computer check box to instruct Lookout
Direct
whether or not to look for the interface card in the computer. Be sure to
check this box when you are ready to start polling your PLCs. When you
check this box and select OK, LookoutDirect
initializes the card, activates
its self-test, and downloads its driver firmware. Then polling begins. Leave
the Card exists in this computer check box deselected (this is the default
setting) if the card is not in your computer (for example, if you are
developing a process on a computer different from the one that will be
running the process) or if you do not want to poll any PLC connected to
the card.
If you deselect the Card exists in this computer check box, you are
disabling communications using this interface card with all PLCs
connected to it.