Excel 800 Connecting to External Systems or Interfaces
31 EN1B-0375GE51 R0910
Connecting to External Systems or Interfaces
WARNING
Risk of electric shock or equipment damage!
► Do not touch any live parts in the cabinet!
► Disconnect the power supply before making connections
to or removing connections from terminals of controller or
I/O modules.
► Do not reconnect the power supply until you have
completed installation.
► Observe the rules regarding electrostatic discharge.
Connecting via LONWORKS Bus
Via a LONWORKS Bus, an Excel 800 System can be
connected to other controller systems, to additional
L
ONWORKS Bus I/O modules, or to laptops.
LONWORKS Bus Termination
Depending upon the configuration, either 1 or 2 termination
modules are required for terminating a L
ONWORKS bus with
FTT devices on it.
The following 2 different L
ONWORKS termination units are
available for this purpose:
209541 LONWORKS Bus Termination Module and
XAL-Term LONWORKS Connection and Termination
Module, which can be mounted on DIN rails and in fuse
boxes
Termination Examples
Brown
Brown
Orange
Orange
Yellow
Yellow
Fig. 43 Termination Module 209541 connections for a
doubly-terminated FTT network
Fig. 44 Termination Module 209541 connections for a
singly-terminated FTT network
Fig. 45 XAL-Term Connection and Termination Module