Ethernet Communication Mode - nvent SPECTRACOOL G52 Instruction Manual

TO CHANGE THE STATIC NETWORK TO DYNAMIC NETWORK MODE
• In the Single ACU Ethernet Info tab screen, click on Read Ethernet Info button to read the network card information.
Note: the Reprogram ACU button is now enable.
• Check the box next to the Use DHCP Server on the upper left corner of the screen.
• Click on Reprogram ACU button. Now the network is switched to dynamic from static mode.
• To change the dynamic mode to static mode, in the Single ACU Ethernet Info tab window click on Read Ethernet
Info button.
• Uncheck the box next to the Use DHCP Server on the upper left corner of the screen.
• Click on Reprogram ACU button to switch to static mode.

ETHERNET COMMUNICATION MODE

• In the Hoffman A.C. Monitor screen, click on Tools on the main menu.
• In the dropdown window, check the Use Ethernet and notice that Comm Port is now disabled.
• Select Single ACU Monitor tab, in the window click on the Device IP box and type the IP address that need to
communicate to the network card.
• Click on the Community box and then type the word private.
Note: there are two community strings where one is for read ONLY and one is for read/write.
The word "public" allows to read ONLY and "private" allows to read and write.
• Click on Enable Comm button to communicate to the network card and read the temperature information from the
controller.
• Now the temperature settings information in the controller present on the screen.
• To view and change the temperature setpoints, Ethernet card configurations, static and dynamic networking mode,
simply follow the same procedures that define for the USB communication mode above.
TO MONITOR MULTIPLE A/C UNITS IN THE NETWORK
With the Ethernet networking mode, it provides user with the ability to manage and monitor hundreds
of the A/C units from distance domestically and globally at one central location as long as all A/C units
configure in the same subnet in the network. Refer to remote access control (RAC) Instruction Manual for
configuring multiple units and with text message and email capability in Hoffman A.C. Monitor software.
The remote access control Instruction Manual, P/N: 89091002 can be downloaded from nVent support
center link, https://go.nvent.com/remote-access-control-support-center.
ALARM LOG ACCESSIBLE WITH SUPPORT PROTOCOL
• Using custom software with below supporting file gives the user the ability to view a log of the last 25 alarms
LJ MIB file for SNMP protocol
LJ Register and Coil file for Modbus TCP protocol
LJ EDS and/or EtherNet_IP Objects file for EtherNet/IP protocol
LJ Profinet Data Point file for Profinet protocol
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