Energy Management System

Description and Purpose

Energy management systems ensure wise energy conservation practices, and save costs related to facility heating and air conditioning.

There are two ways to integrate with an energy management system: Central EMS, and Distributed EMS.

Figure 1: Creating an Energy Management System

This document discusses integrating the intrusion system, or remote control system with a new or existing thermostat or a distributed Energy Management System to further enhance its capabilities and to dramatically increase energy savings. Capabilities and configuration depend on the control panel you choose.

The VISTA-ICM and Energy-ICM modules work together through a LAN connection to save energy. Users can access the “http://honeywell” page on a any PC that is locally-connected to the LAN. A page appears allowing users to set temperature ranges for armed and disarmed status changes, along with other energy-saving functions.

The Energy-ICM uses a distributed energy management concept, with thermostats assigned to designated areas for the manipulation of all HVAC and Heater fans, ducts, or other environmental appliances. Thermostat cables route from the thermostat to control individual rooms or departments within the facility, and connect to fans, duct dampers, or HVAC appliances. Usually, each thermostat connects to its own associated Heat or Air conditioning appliance.

By routing a ECP bus to the location of the thermostat, you can use the intrusion system to provide the room’s armed status and deliver their status to the thermostat.

By Integrating the VISTA Control Panel from the intrusion detection system to the thermostat, you can make cost-cutting decisions based upon the armed state of a department. This dramatically improves energy savings and cost savings.

Connections and Considerations

The table below refers to the drawing in Figure 1. If you are using this document on line, click the links in the table below to see more information.


Model No.


Mounting Options




Optional Contact: Surface Mount

Exposed on Door or Window Frame

Example of intrusion devices connected to the system. 1.25” gap


Energy ICM

Thermostat Interface (VisionPro thermostat)

Anywhere along the Thermostat bus where TCP/IP connection is available

Connects to TCP/IP Network. Connects to VisionPro Thermostat data to the TCP/IP network



Vista ECP-TCP/IP Network Interface

Anywhere along the ECP bus where TCP/IP connection is available

Connects VISTA Control’s ECP to the TCP/IP Network



ECP Data Bus


Connect to User interfaces, communication devices and relay modules


The intrusion system can provide status when a room is occupied and notify the thermostat, allowing for the system to make environmental adjustments to the room as needed.

Performance Specifications

Specifications of the unit shall be compared to the Honeywell VISTA-ICM and Energy-ICM units.
The system’s relays shall be addressable, and shall have the capability of being located at any location on the system’s ECP bus.
The system shall integrate with the Intrusion Detection System