Chapter 9 Communication; Snmp Protocol Communication; Modbus Protocol Communication; Dry Contact Communication - Liebert NXC 30kVA User Manual

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Table Of Contents

Table of Contents

The UPS supports SNMP communication, Modbus protocol communication, dry contact communication and Velocity

protocol communication. This chapter provides information relevant to these types of communication.

Refer to corresponding settings in Table 4-7 for communication protocol transfer. Selecting 'Velocity' means the

system supports the Velocity protocol communication; selecting 'YDN23' means the system supports SNMP

communication, Modbus protocol communication, dry contact communication.

9.1 SNMP Protocol Communication

If you need to monitor the UPS through network, you may select the IS-WEBL card provided by Emerson Network

Power Co., Ltd. This card supports SNMP protocol.

The IS-WEBL card is a network management card. It can make the UPS made by Emerson Network Power Co., Ltd

real network equipment. It can also be connected to the IRM series sensor to provide environment monitoring function.

When the intelligent equipment generates an alarm, the IS-WEBL card can notify the user by recording the log,

sending trap information, and sending a mail.

The IS-WEBL card provides three approaches for you to monitor your intelligent equipment and equipment room

environment:

Web browser. You can use Web browser to monitor your intelligent equipment and equipment room environment

through the Web server function provided by the IS-WEBL card

Network management system (NMS). You can use NMS to monitor your intelligent equipment and equipment

room environment through the SNMP function provided by the IS-WEBL card

SiteMonitor, a network management software for equipment room power and environment. You can use

SiteMonitor to monitor your intelligent equipment and equipment room environment through the TCP/IP interface

provided by the IS-WEBL card

The IS-WEBL card can also work with the Network Shutdown computer safe shutdown program developed by

Emerson Network Power Co., Ltd. to provide automatic safe shutdown function for your computer installed with

Network Shutdown, so as to prevent data loss.

The IS-WEBL card should be installed in the Intellislot port (see Figure 3-5) in the UPS.

For the installation and setting information of the IS-WEBL card, refer to the Liebert IntelliSlot Web Card Quick Start

Guide in accessory.

9.2 Modbus Protocol Communication

The UPS can achieve Modbus communication through the optional IS-485L card. For the installation and use of the

IS-485L card, refer to the Liebert IntelliSlot Modbus 485, Modbus IP And BACnet IP Reference Guide in accessory.

9.3 Dry Contact Communication

The UPS provides the following two dry contact communication approaches:

IS-Relay card (option)

Dry contact port

9.3.1 Communication Through IS-Relay Card

The UPS provides an optional IS-Relay card for the user to use dry contact signals to monitor the UPS. The IS-Relay

card should be installed in an Intellislot port (see Figure 3-5) of the communication box in the cabinet. For the

installation and use of the IS-Relay card, refer to the Liebert IntelliSlot Relay Card User Manual in accessory.