Echelon LonPoint Application and Plug-In - Manual (Page 8)

1-2 LonPoint System Overview
Introduction to the LonPoint System
The LonPoint System is a family of L ON M ARK® products used to integrate new and
legacy devices, as well as other L ON M ARK devices, to create interoperable control
systems. The LonPoint system product family includes the following:
•
LonPoint Interface, Scheduler, Data Logger, and Router Modules. L ON M ARK
devices that provide I/O processing, application resources, scheduling,
sequencing, data logging, and routing for a LonPoint system. The LonPoint
interface, scheduler, and data logger modules are certified to meet the L
ON M ARK
Interoperability Guidelines.
•
LonMaker for Windows Integration Tool. An LNS installation tool with a
Visio™ user interface that supports LonPoint devices, other L ON M ARK devices,
and other L ON W ORKS devices. You can use the LonMaker tool to design,
configure, commission, and maintain a distributed control network. The
LonPoint Plug-in is included with the LonMaker tool to simplify LonPoint device
configuration.
•
LonPoint Plug-In. An LNS application that provides an easy-to-use interface for
configuring LonPoint devices. The plug-in can be called from any LNS tool that
follows the LNS plug-in standard, including the LonMaker tool.
•
LNS Server. The service provider for the LNS network operating system.
Provides a central database that can be used by multiple LonMaker tools,
LonPoint Plug-ins, and other LNS applications simultaneously. The LNS Server
may run on the same PC with the LonMaker tool and LonPoint Plug-in, or may
run on a different PC. A remote LNS Server may be accessed over a LonWorks
network, a local area network, or the Internet.
•
LNS Network Interface Hardware. Hardware that allows you to connect a PC
running the LNS Server, the LonMaker tool, and the LonPoint Plug-in to a
L
ON W ORKS network. This hardware is not necessary for network design, but
must be installed to commission, test, or manage devices. The LNS network
interfaces include the PCLTA-10 ISA card, the PCC-10 PC Card (PCMCIA
compatible), the SLTA-10 Serial LonTalk Adapter, and the PCNSI ISA card.
Each LonPoint device comes pre-loaded with application software that implements a
number of functional blocks. These functional blocks are listed in Table 1.1. They
are installed and interconnected using the LonMaker tool as described in the
LonMaker for Windows User’s Guide. The functional blocks are then configured as
described in this user’s guide.
Table 1.1 LonPoint Functional Blocks
Chapter Name Description Examples
2 Digital Input
(DI) Senses digital inputs Contact closure, push
button input, logic input
3 Digital
Input/Counter
(DC) Senses, counts, and times
digital inputs Turnstyle counting,
frequency measurement,
flow meter interface.
4 Digital Output
(DO) Drives digital outputs Control relays, logic
outputs
5 Digital
Encoder (DE) Performs logic functions
on up to four digital
inputs Relay logic, interlocks,
Boolean logic, device
enables