Orion System VCM Component - Manual (Page 20)

Component & System Wiring 20
General Information
The Orion system components can be configured into several types of
systems. It is a good idea to become familiar with the different types of
systems and their architecture by reading the information in this section
and looking at the configuration diagrams in the System Configura-
tions Installation & Commissioning section of this manual. The infor-
mation below is designed to help you understand how the system com-
ponents integrate with each other and the available configuration op-
tions.
System Types
Four different system configurations are available depending on the
type and number of controllers that you have on your system.
1. Stand Alone
(See Pages 6 Through 8 For Connection Diagrams)
2. Interconnected
(See Pages 9 Through 11 For Connection Diagrams)
3. Networked Single Loop
(See Pages 12 Through 16 For Connection Diagrams)
4. Networked Multiple Loop
(See Pages 17 Through 19 For Connection Diagrams)
System Type Definitions
Stand Alone
This system consists of a single VCM controller. Programming and
status monitoring are accomplished by one or more of the following
methods.
1. By using an operator interface. This can be either a
Modular System Manager, a Modular Service Tool or both
devices.
2. A computer interface can also be used in conjunction with
the other operators interfaces listed above, or by itself. This
requires a CommLink and a personal computer with the
Prism computer front end software installed.
Interconnected
This system consists of a group of VCM Controllers interconnected
with communication cable to allow programming from one central loca-
tion. Broadcasting between controllers is not available. Programming
and status monitoring are accomplished by one or more of the following
methods.
1. By using an operator interface. This can be either a
Modular System Manager, a Modular Service Tool or both
devices.
2. A computer interface can also be used in conjunction with
the other operators interfaces listed above, or by itself. This
requires a CommLink and a personal computer with the
Prism computer front end software installed.
Networked Single Loop
The Networked Single Loop system, as its name implies, consists of a
single communications loop. This loop utilizes a network device to share
information that is broadcast from one controller to all controllers on
the loop. The system can consist of the following devices.
1. A series of VCM Controllers that utilizes a
network device to share information that is broadcast from
one controller to all controllers on the loop.
2. A single VCM controller and a series of VAV/Zone
controllers. A network device is used to share information
which is broadcast back and forth between all controllers
on the loop.
These systems require a network device in the form of either a CommLink
communications interface or a MiniLink Polling Device. Both network
devices may also be used together. Programming and status monitoring
are accomplished by the following methods.
1. By using an operator interface. This can be either a
Modular System Manager, a Modular Service Tool or both
devices.
2. A computer interface can also be used in conjunction with
the other operators interfaces listed above, or by itself. This
requires a CommLink and a personal computer with the
Prism computer front end software installed.
When using the MiniLink Polling Device alone, only the System Man-
ager or Modular Service Tool can be used to program and monitor the
system. With the addition of the CommLink, the Prism computer front
end software and a PC can be used to program and monitor the system
in addition to the Modular Service Tool or Modular System Manager.
Networked Multiple Loop
This Networked Multiple Loop System consists of two or more loops,
each being called ‘Local Loops’, with one ‘Network Loop’ that ties the
“Local Loops” together. Each of these loops can consist of one of the
following groups of controllers.
1. A series of VCM controllers.
2. A single VCM controller and a series of VAV/Zone
controllers.
To form the Networked Multiple Loop System the following network
devices are required.
1. A MiniLink Polling Device is required per loop (Local
Loop). This allows the controllers to share information that
is broadcast from one controller to all controllers on that
local loop.
2. One CommLink is required for the entire system. It resides
on the Network Loop and allows for communications
between all the local loops and provides for global
broadcasts to all controllers on the entire system.
Systems Overview