® U.S. Registered Trademark
Copyright © 2000 Honeywell Inc. • All Rights Reserved EN0B-0090GE51 R1200
Distributed I/O
XFL521B, 522B,
523B, AND 524B MODULES
PRODUCT DATA
FEATURES
• LONMARK™ compliant
• 2-wire LONWORKS
®
bus interface between controller
and I/O
• No additional field terminals required
• May be used with Excel 500 controllers in conjunction
with standard I/O modules
• Automatic binding and commissioning with Excel 500
• Connector module with sliding bus connector (thus
eliminating the need to wire together neighboring
modules)
• Fast connection due to spring clamp terminals
• Module exchange during operation
• Optional manual override with feedback
• Alarm in case of defective module
• Mechanical coding prevents mismatching of modules
• Power LED (L1, green) and L
ONWORKS service LED
(L2, red) on all electronics modules.
• Status LEDs for analog outputs and digital in- and
outputs
• Optional manual override modules for analog and
digital output modules
GENERAL
The XFL521B, 522B, 523B, and 524B modules are LONMARK
compliant digital and analog I/O modules which can be
installed at strategic locations within a building. These
modules convert sensor readings and provide output signals
used for operating actuators via L
ONWORKS standard network
variables (SNVTs). Each Distributed I/O module plugs into a
base terminal block allowing communication with controllers
via the built-in Echelon
®
LONWORKS bus interface. The ter-
minal block provides spring clamp terminals for easy connec-
tion of field cables from the various sensors and actuators.
The modular system allows Distributed I/O modules to be
removed from the system without disturbing other modules.
The module with terminal block mounts easily onto a DIN-rail.
The Excel 500 CPU (XC5010C, XC5210C, XCL5010) is
capable of automatically binding and commissioning the Dis-
tributed I/O modules via the L
ONWORKS bus. When the
modules are used by other controllers, plug-ins are provided
so that the modules can be commissioned by any LNS or
non-LNS installation or network management tool.
DESCRIPTION
The XFL521B, 522B, 523B, and 524B are Distributed I/O
modules that use a Neuron® chip and an FTT-10A free
topology transceiver for communication on a L
ONWORKS bus.
The modules are compliant with L
ONMARK Application Layer
Guidelines V3.2.
Table 1. Modules and accessories.
Module Description
XFL521B Analog Input module
XFL522B Analog Output module
XFL523B Digital Input module
XFL524B Digital Output module
XSL511 LONWORKS connector module
XSL512 Manual terminal disconnect module
XSL513 Terminal block for XFL521/522/523
XSL514 Terminal block for XFL524
XFR522A Analog Output manual override module
XFR524A Digital Output manual override module
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