Chapter 9 Communication 89
NX UPS Single Module And Parallel System 250kVA ~ 800kVA User Manual
Chapter 9 Communication
The UPS supports SNMP communication, Modbus protocol communication and dry contact communication. This
chapter provides information relevant to these types of communication.
9.1 SNMP Protocol Communication
If you need to monitor the UPS through network, you may select the SIC card provided by Emerson. This card
supports SNMP protocol.
The SIC card is a network management card. It can make the UPS developed by Emerson have network
communication capability. It can also be connected to the IRM series sensor to provide environment monitoring
function. When the intelligent equipment generates an alarm, the SIC card can notify the user by recording the log,
sending trap information, and sending a mail.
The SIC 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 SIC card
NMS. You can use NMS to monitor your intelligent equipment and equipment room environment through the
SNMP function provided by the SIC 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 SIC card
The SIC card can also work with the Network Shutdown computer safe shutdown program developed by Emerson to
provide automatic safe shutdown function for your computer installed with Network Shutdown, so as to prevent data
loss.
The SIC card should be installed in an Intellislot port on the front panel of the control module on the top of the bypass
cabinet. For the installation and setting of the SIC card, refer to
Site Interface Web/SNMP Agent Card User Manual
.
9.2 Modbus Protocol Communication
The UPS can achieve Modbus communication through the optional Modbus card. The Modbus card should be
installed in an Intellislot port on the front panel of the control module on the top of the bypass cabinet. For the
installation and setting of the Modbus card, refer to
UPS JBUS/MODBUS Adapter User Manual
.
9.3 Dry Contact Communication
The UPS provides the following two dry contact communication approaches:
Relay card (option)
Dry contact port
9.3.1 Communication Through Relay Card
The UPS provides an optional relay card for the user to use dry contact signals to monitor the UPS. The relay card
should be installed in an Intellislot port on the front panel of the control module on the top of the bypass cabinet.
Refer to
8.2.8 Relay Card
for the installation and use of the relay card.
9.3.2 Communication Through Dry Contact Port
According to the specific site requirements, the UPS may need auxiliary connection to achieve functions like
acquiring external equipment status information, providing alarm signals to external devices, and remote EPO. These
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