Eaton MTL83*C Modbus Software Manual

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Eaton MTL83*C Modbus Software Manual Manual pdf 13 page image

9INM MTL83xC PC Modbus Rev 1DRAFT - 06 January 2019After connecting a USB cable to the MTL838C and providing it power, theConnection Status changes to:Figure 3 - Connection statusThis Connection Status indicates that the PC software is communicating over theUSB cable with the MTL838C – both LEDs are ON and the MTL838C word is green.The MTL838C is not communicating with the MTL831Cs in the above image.Once MTL831Cs are connected to the MTL838C, then their titles will turngreen as well.As explained in the Background section for the MTL831C, #1 means Address 1 (noaddress jumper on terminals 7 & 8) and #2 is Address 2 (a wire jumper betweenterminals 7 & 8). There can be one or two MTL831Cs connected to a singleMTL838C and if there are two, they MUST have different address settings. Theaddress determines which MTL831C belongs to which Tab in the software. Mixingthem up or changing the jumpers may result in an unexpected configuration.5 1 Configuration OverviewIt’s worth taking a minute to understand to overall philosophy of the MTL83xCConfigurator software.To allow offline configuration (not being connected to the MTL838C while enteringthe configuration data), we created two fields on the screen for every configurationpoint. One of the fields is editable and the other is the displayed value from theunit the PC software is communicating with. If it is not communicating with aunit, then that field is blank. An example field is shown below. The dropdown isthe PC software setting and the gray box below it is the value read back from theconnected MTL838C. Not all tabs use the same color scheme but the principle isthe same.There is a way to load and store configuration settings to your computer (see theMenu Command section). With this capability, configurations can be carried outahead of time and stored until the units are installed and ready to program. Theconfiguration is then loaded from your computer and downloaded to the unit.When a small change needs to be made to an already configured unit, you can firstconnect to the unit and Upload its configuration, make the necessary modifications,and then Download the updated configuration to the unit.