NT21_Setup Manual (V068-E1-1) (986757), страница 23
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However, if an error occurs, the System Menu can be displayed from the error messagescreen.Disabling/enabling Writing to the Screen Data MemoryWhen writing to the screen data memory is disabled by this setting, it is impossible to use the following System Menu functions. It is possible, however, to clearthe screen data in the system installer mode.• Switching to the Transmit mode• Displaying the memory switch setting screens• Checking the screen data memory• Displaying the initialization menu120SectionOperations in the System Installer Mode6-5Change the system settings by following the menu operation from the SystemInstaller mode menu shown below.Select Change System Settings.Select Display System Menu or ScreenMemory Protect .Each time either of these items is selected,the setting switches from Disabled to Enabled or vice versa.Select OK.The settings are written to the NT21 whilethe screen is displayed.• If Cancel is selected, the NT21 returns to the System Installer mode menuwithout changing the settings.
The settings remain as they were before the operation was started.• If writing of the settings fails, a screen asking whether you wish to try again isdisplayed.After the settings have been written, the System Installer mode menu screen isredisplayed.6-5-4 Clearing Screen DataIf the screen data has been corrupted and the NT21 cannot be started normally,use this function to clear the screen data.Note that only the screen data is cleared (initialized); the memory switch settings, display history record data, alarm history record data, and recipe data areretained.Reference:S When this function is used, all of the screen data contents registered in theNT21 up to that point are cleared. Check that the created screens are backedup at the NT Support Tool before using it.S The screen data can also be cleared from the System Menu (page 110).S If the screen data is cleared in the System Installer mode, the message ScreenData Corrupted may be displayed on switching to the RUN mode.
If this happens, initialize the screen data again from the MEMORY INIT. MENU screen.121SectionOperations in the System Installer Mode6-5Clear the screen data by following the menu operation from the System Installermode menu shown below.Select Erase Screen Data.Select Yes.The screen data is cleared. During clearance, the message Erasing ... is displayed.• If Return to Menu is selected, the NT21 returns to the MEMORY INIT. MENUscreen without clearing the screen data.• If screen data clearance fails, a screen asking if you wish to try again is displayed.On completion of screen data clearance, the NT21 returns to the System Installer mode menu screen.After the screen data has been cleared, if an attempt is made to set the NT21 tothe RUN mode before screen data has been transmitted from the NT SupportTool or Memory Unit, an error message will be displayed and the RUN mode willnot be established.122SectionTransmitting the Screen Data6-66-6Transmitting the Screen DataThe screen data is created with the NT Support Tool and then transmitted to theNT21.
This section explains how to transmit the screen data.For details on how to create the screen data and the operation of the NT SupportTool, refer to the Reference Manual and the NT-series Support Tool Ver. 4.6 forWindows Operation Manual (V061-E1-j).Reference:S The screen data can be transmitted also from the Memory Unit installed in theNT21. For details on this method, refer to 3-5 Using a Memory Unit.S The screen data can be transmitted at a faster rate by setting High for BaudRate on the Comms.
Setting... window of the NT Support Tool.S If writing to the screen data memory is disabled by the setting made for SystemSetting in the System Installer mode, screen data transmission is not possible.Screen Data Compositionand Transmission UnitsThe screen data comprises the following types of data.• User screen data (screen units)• System memory (memory switch) settings• Direct connection information• Numeral memory table data• Character string memory table data• Bit memory table data• Mathematical table data• Mark information• Image/library data• Recipe table dataIt is possible to transmit the screen data (data for all the screens) in file units, or totransmit individual data or the data of individual screens in data units.
(It is notpossible to transmit mathematical table data in data units.)When data is transmitted in file units, all of the screen data in the NT21 is clearedand then the new data is transmitted.When data is transmitted in data units, first the previous data is invalidated, thenthe new data is registered as valid data. Since the previous data is not cleared,free memory area in the NT21 will be insufficient when transmissions in dataunits are repeated. If this happens, write the screen data again by data transmission in file units.Transmitting Screen Datafrom the NT Support ToolTo transmit screen data from the NT Support Tool to the NT21, follow the procedure below.Operation1, 2, 3...1.
Connect the NT21 to a personal computer in which the NT Support Tool hasbeen installed and turn the power to the NT21 ON.2. Turn ON the power to the personal computer and start up the NT SupportTool.123Transmitting the Screen DataSection6-63. Establish the Transmit mode by following the menu operation from the System Menu shown below at the NT21.Select Transmit Mode.Select Tool Transmit.4. Open the screen data to be transmitted at the NT Support Tool, then selectDownload (NTST PT) in the NT Support Tool’s Connect menu and specifythe data to be transmitted.5. During screen data transmission, the transmission status is displayed.6. On completion of screen data transmission, press the Quit touch switch.The NT21 returns to the Transmit mode.If the screen data cannot be successfully transmitted from the NT Support Tool,use the communication check functions of the NT21 to check if communicationbetween the NT21 is normal or not (page 161).Precautions to BeObserved WhenTransmitting Screen Data124If any of the following, or a system error, occurs during transmission of screendata, the transmitted screen data will not be registered correctly in the NT21.
Ifthis happens, the NT21 may not enter the RUN mode when started up, or theremay be unpredictable malfunctions such as failure to display screens during operation. In this case, the screen data must be retransmitted in file units to registerit correctly.• The power to the NT21 is interrupted.• The power to the personal computer on which the NT Support Tool is running isinterrupted or the computer is reset.• The cable connecting the NT21 to the personal computer on which the NTSupport Tool is running is disconnected or has a broken wire.• The Quit touch switch on the NT21 screen is pressed to end screen data transmission.SectionSetting Conditions for Communications with Host by Using Memory Switches6-7• Screen data transmission is stopped by operation at the NT Support Tool.Note When transferring the data in units of screens, if there are changes in memorytable and/or direct access, transfer such data along with the screen data.The system may operate unpredictably without this data.6-7Setting Conditions for Communications with Host byUsing Memory SwitchesThe method for setting the communication method for communications with thehost is described here.For details on setting the communication conditions for a bar code reader, referto 6-10 Setting the Bar Code Reader Input Function (page 144).6-7-1 About Communication ConditionsItems Set forCommunicationConditionsSetting ItemThe following settings are made for the communication conditions for communication between the NT21 and the host.Port Communication Method/Communication Type SettingsFunctionSetting OptionsPageComm.
A MethodSet the communication method used at serialport A. Depending on the communication method, further communication condition settingsmay be necessary.None/Host Link/NT Link (1:1)/NT Link (1:N) (standard or highspeed)/Bar-Code ReaderMemory linkPage 127Page 129Page 129Page 132Comm. B MethodSet the communication method used at serialport B. Depending on the communication method, further communication condition settingsmay be necessary.None/Host Link/NT Link (1:1)/NT Link (1:N) (standard or highspeed)Memory linkPage 127Page 129Page 129Page 132Communication Condition Settings for the Host Link MethodSetting ItemComm.
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