User manual

External Communication—Building Management Systems, Liebert SiteScan

6.0 EXTERNAL COMMUNICATION—BUILDING MANAGEMENT SYSTEMS, LIEBERT

SITESCAN

Liebert iCOM is capable of communicating with external monitoring systems, such as Building

Management Systems (BMS), Network Monitoring Systems (NMS), Liebert's SiteScan

Web system

and others.

Each Liebert iCOM-controlled cooling unit is equipped with Liebert IntelliSlot plug-in slots for use

with optional communication cards:

• Ethernet Web/SNMP Card

• RS-485 Modbus Card

The hot-swappable plug-in cards provide interfaces supporting open protocols, including Modbus,

HTTP (Web) and SNMP. See the Liebert Web site for the latest supported protocols, Modbus

reference information and SNMP MIBs: www.liebert.com

An alternate, limited method of communicating with an existing Liebert SiteScan Web monitoring

system is via twisted-pair cables connected to terminals 77 and 78 on the cooling unit terminal strip.

To use this method, the Liebert IntelliSlot power supply connection to P65 on the Liebert iCOM I/O

board must be unplugged, and the factory-supplied 77-78 cable must be connected to P65 (follow

Liebert SiteScan instructions for further connections). The appropriate Liebert iCOM control

parameters must be configured to utilize the terminals.

Liebert iCOM software versions PA1.04.022.STD and older, which shipped before to November 2010,

will support Velocity V3.

The older Velocity V3 cards will become obsolete with the advent of the Velocity V4 protocol and the

newer Liebert IntelliSlot cards that communicate with this protocol. The newer cards are compatible

with the older Liebert IntelliSlot cards’ Modbus mapping and data.

NOTE

Liebert SiteScan will be limited to legacy parameters when communicating via

Terminals 77 and 78.

Table 15 Liebert IntelliSlot card compatibility

Software Version

Card

Compatibility Protocol Supported

PA1.04.033.STD—Velocity V4

IS-485L Modbus RTU 485

IS-WEBL SMTP, SNMP, SMS, HTTP

IS-485EXI

Liebert SiteLink-E communication card

(supports enhanced data set for Liebert iCOM)

IS-IPBML Modbus IP

— * BacNet available soon

PA1.04.022.STD and Older—Velocity V3

OC485-LBDS Modbus RTU 485 / IGMNet Extended

ISWEB-LBDS SNMP , HTTP

The newer communication cards support the latest information available through Liebert iCOM. Previous Liebert IntelliSlot cards

should be used for legacy information.