Possible Cause Number Five; Possible Cause Number Six; Possible Cause Number Seven; Possible Cause Number Eight - Honeywell EXCEL5000 OPEN XILON User Manual

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Table Of Contents

Table of Contents

Explanation/Action

XILON and the node you are searching for must be located on the same domain,

i.e. their domain lengths and domain IDs must be the same.

To determine a device's domain length and domain ID, press its service pin and

use the <F5> hot key to view its domain table entries. Then change XILON's

settings accordingly using the <F10> hot key.

A router located between the node which you are attempting to access and your

XILON is acting as a barrier.

Explanation/Action

Intelligent routers (i.e. learning routers or configured routers) can influence the

transmission of communications between the different channels which they connect

and act as filters or barriers. Depending upon the router's configuration and its

network topology, this can adversely affect and even completely sever

communications between your XILON and the node which you are attempting to

access. In this case, you should try connecting your XILON directly with the

channel of the node you are attempting to access; you might try doing this by using

an additional router which has been configured as a repeater. Under some

circumstances, assigning a new subnet address to your XILON may alleviate the

problem (re-assigning the subnet address requires a good understanding of the

network topology).

The node which you are attempting to access and your XILON have the same

network address.

Explanation/Action

Nodes use their network addresses to send messages. A node's network address

consists of three components: 1) the domain to which it belongs, 2) the subnet to

which it belongs within the domain, and 3) its node number within the subnet.

Assign a different subnet address and/or node address to your XILON.

The node which you are attempting to access and/or your XILON require / make

use of authentication.

Explanation/Action

In order to be able to communicate with each other, your XILON and the node

which you are attempting to access must make use of the same authentication

code. Adjust the setting of your XILON accordingly. In doing so, bear in mind that

authenticated nodes are frequently entrusted with critical security tasks, and that

manipulating such nodes can have serious repercussions.

Your XILON is "unconfigured" state.

Explanation/Action

Your XILON can be in any one of the three following states: 1) configured/online, 2)

configured/offline, 3) unconfigured, and 4) applicationless. Place your XILON in the

"configured/online" state. Before doing this, it may be necessary for you to first

assign an appropriate address (domain / subnet / node) to your XILON.

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