User Guide - Eurotherm Ltda

nanodac RECORDER/CONTROLLER: USER GUIDE3.4.12 Modbus Master display modeThis display mode consists of two pages, as shown below.ConnectionstatusPage one opens by default and shows the first eight parameters being read from (left pointing arrow) or writtento (right pointing arrow) the relevant slave. These items are configured in the Modbus Master configurationdescribed in Section 4.9. Hidden parameters may be viewed by operating the scroll key, then usingthe arrow keys to scroll through the list. A green arrow means that the item may be edited by the user whenlogged in.A pair of animated indicators in the top left-hand corner of the screen show the connection status of thetwo possible slaves. A green moving ‘streak’ indicates that successful communications are being carriedout. A red flashing circle indicates that there is a break in the transmission line or that the slave isswitched off. A grey, non-animated display indicates that that slave has not yet been configured as apart of the communications link (i.e it is ‘off line’).A ‘traffic light’ indicator appears to the right of each parameter. Green indicates that the parameter is beingread from or written to successfully. Orange indicates that a write of the value is pending. Red indicates thatthere is an error and that no value is currently being read or written; the value displayed is the last good valueread or written depending on whether the data item is a read or write. If the indicator is black, the parameteris ‘off’.Operation of the scroll key highlights the page symbol in the top right-hand corner of the screen, and a furtheroperation of the scroll key calls page two to the screen.Page two contains the IP address of the Modbus master and of any slaves connected to it, together withsome diagnostic information, as described in ‘PING DETAILS’ below.Page symbolRead/WriteParameter statusModbus MasterParametersand valuesChan 1 TmpChan 2 TmpVChannel 1 PVVChanne 2 PVVChannel 3 InputAny Channel alarmDig In 1198.3200.32.0-20.0122ActiveOffModbus Masternanodac123.123.123.120Modbus MasterChan 1 TmpChan 2 TmpVChannel 1 PVVChanne 2 PVVChannel 3 InputAny Channel alarmDig In 1195.6199.74.1-23.913ActiveOffnanodac123.123.123.123266841Ping...3rd Party123.123.123.12400Ping...The list of parameters can be scrolled through usingthe up/down arrows. Values being read by the masterare read only, but the user may enter values forparameters being written by the master, by highlightingthe relevant item and using the scroll key toenter edit mode.The use of the Page key causes a return to be madeto the initial Modbus Master display.Figure 3.4.12a Modbus Master display pagesHA030554Issue 7 Nov 12Page 45