Part
1. Overview
6
Design Guide
DCM014A51
Part 1. Overview
1. DCM014A51
iTM
BACnet® Server Gateway
The
intelligent Touch Manager™
(
iTM
) is now capable of serving as a
BACnet
interface for Building
Management System (BMS) integration. The
iTM
BACnet
Server Gateway option (DCM014A51) will
provide BMS integrators the ability to monitor and control
VRV
indoor units via the
BACnet
/IP protocol.
The
iTM BACnet
Server Gateway option eliminates the need for an additional hardware interface for the
BMS to monitor and control a
VRV
system. The
iTM BACnet
Server Gateway option provides seamless
control-logic integration between the
iTM
and BMS.
Figure 1. iTM BACnet® Server Gateway
1.1 Features:
• Direct connection on
iTM
using the
BACnet
/IP Protocol.
•
BACnet
virtual router
function implemented:
» Individual
BACnet
device ID
assigned to each indoor unit group address.
»
Indoor unit group names created in the
iTM
are visible on the BMS.
• Easy commissioning using CSV file.
»
Available objects can be configured for each indoor unit.
• Support Change of Value (COV) notifications to BMS.
• Configurable as a
BACnet
foreign device if BBMD exists on a different subnet within
BACnet
network.
• Independent heating and cooling setpoints for occupied and unoccupied periods.
• Individual min/max
Setpoint Range Limitation
for heat and cool modes.
• The
iTM’s
auto-changeover, setpoint range limitation, setback, dual setpoint logic, and
schedule can be accessed by the BMS.
The
intelligent Touch Manager
(hereinafter referred to as "
iTM
") supports the
BACnet
2004 protocol
(hereinafter referred to as "
BACnet
specifications"). The
iTM
operates as a
BACnet
server that provides
BACnet
objects to monitor/operate indoor units connected to the DIII network in response to requests
from a Building Management System (BMS), i.e.,
BACnet
client.
