EnerSys Alpha Cordex CXC HP - Setting up Modbus Communication; Figure 4-26 Default Ports: Modbus Client (Master) and Server (Agent)

Cordex®CXCHPControllerSoftwareManual|4-Gettingstarted
TherearetwomainstepsrequiredtoaddanewagenttoyourSNMPsystem:
• ConfiguretheagentwiththeIPaddressofyourSNMPmanager(telltheagenttosendinformation
tothemanager).
• Compiletheagent'sManagementInformationBases(MIBs)intothemanager(tellthemanager
howtointerpretinformationsentbytheagent).
Configure an IP address to receive notifications
ConfiguringanIPaddressfornotificationsisreferredtoasSubscribing to Notification Services.Upto
tenIPaddressescanbeconfigured.SNMPmonitoringsystemsneedtocompileandinstalltheALPHA-
NOTIFICATION-MIB.PleaserefertotheuserguideoftheSNMPmanagerforthisprocess.
ForeachofthetenSNMPnotificationsaddresses,theusercanselecttheaddressandselecttheGO TO
buttontoseemoredetailsaboutthatparticularmonitoringdestination,andtoeditdetails.
Notice: For detailed information on using SNMP, see the SNMP Integrator Guide (User Guide
ID: 0350099-J0) on the Alpha® website, www.alpha.ca.
4.6. Setting up Modbus communication
ThecontrollercanactasaModbusserver(agent)inaModbussystem.Thissectiondescribeshowto
enabletheModbusserveronthecontroller.ItdoesnotcoverhowtosetupanModbusclientnordoes
itexplainhowtocorrectlysetupaModbusmonitoringsystem.ThosetopicsarespecifictotheModbus
clientsoftwarechosenwhichwillhaveitsowndocumentation.
Figure 4-26 Defaultports:Modbusclient(master)andserver(agent)
ServerReceivesRequests
on
TC
P
Port502
Modbus
Server
Ethernet
Network
Modbus
Client
To setup Modbus TCP/IP on the controller, you need to enable the Modbus server via the web
interface:
1. GotoController > Communication > Modbus.
2. IntheConfiguration table,enabletheModbusAgent.
3. SelecttheEDIT buttonontheInternet Protocol line,andthenselecttheinternetprotocoltobe
used.
4. SelecttheEDIT buttonontheByte Order line,andthenselectthebyteorder.
5. LimitedDataSetDeviceIDsarenormallyleftasthedefaultvalues.
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