Specifications

Table Of Contents
Third-Party and Building Management Interfaces
23
5.0 THIRD-PARTY AND BUILDING MANAGEMENT INTERFACES
SiteScan Web monitoring products can provide multiple paths for integrating to and with third-party
equipment and software. Through BACnet over IP, SiteScan Web software allows you to interface
with more than one building management system (BMS) at a time. The SiteLink hardware is designed
to communicate concurrently with SiteScan Web and a BMS using Modbus over EIA-232 or EIA-485.
5.1 SiteScan Web and BACnet/IP to BMS
5.1.1 Target Application
A typical application might be:
Customer has a BMS front-end that is used by the facility manager.
Two new computer rooms need to be monitored by BMS and IT Manager.
Each computer room will have:
3 Liebert environmental units
1 STS2/PDU
2 NPower UPSs
4 analog sensors
2 strobe lights for alarm conditions
One local user is allowed.
5.1.2 Description
This configuration is ideal for customers who have a current investment within their BMS and require
the IT Manager’s access to their business unit. SiteScan Web server natively communicates
BACnet/IP to its Ethernet-ready gateway modules. This same protocol is available to any BMS front-
end that supports BACnet/IP.
5.1.3 Bill of Materials
Figure 10 SiteScan Web and BACnet/IP to BMS
Table 12 Bill of materials: SiteScan Web and BACnet/IP to BMS
Qty. Mktg. P/N Description
1 SSWEB SiteScan Web Server Software, includes 2 concurrent users
2 SITEGATE-E 32-bit Ethernet-ready gateway module
8 XFMR24 Transformers for 120/24VAC module power supply
2 SITELINK-12 SiteScan interface module to 12 Liebert units
2 ARC156-KIT PROT485, DIAG485 and terminating resistors with enclosure
2 SITEIO1616 Site I/O module, 16 universal inputs and 16 digital outputs
Note: The bill of materials does not include LGS startup part numbers. Most LGS startup part
numbers are added automatically when ordering.
Ethernet
SiteGate-E
SiteIO 16/16
ARC156-Kit
SiteLink-12
Computer Room 1
BMS
front-end
SiteScan
Web
SiteGate-E
SiteIO 16/16
ARC156-Kit
SiteLink-12
Computer Room 2
Ethernet
BMS
front-end
BACnet/IP
BMS
equipment
EXISTING
SYSTEM
UPGRADED
SYSTEM