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Diagnostics operating area 01/2008
8.6 Interrogating the PLC status
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© Siemens AG 2008 All rights reserved.
8-426 SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
Change
You can change the value of the symbol that is currently displayed in
detail.
The input marker is positioned on Value. Value input is completed by
pressing the Enter key; however, the values are only activated when
the "Accept" softkey is pressed. You can also choose a more suitable
display format.
Accept
The entered value is transferred to the PLC interface.
Change
You can change the value for the selected symbol. Value input is
completed by pressing the Enter key; however, the values are only
activated when the "Accept" softkey is pressed. You can also choose
a more suitable display format. Before pressing the Accept softkey to
validate the data changes, you can modify any number of symbol
values in sequence.
Accept
The previously entered values are transferred to the PLC interface.
Symbols in the status screen
Diagnostics
PLC- status
If the above mentioned requirements are met, the additional "Symbol"
softkey is displayed in the PLC status screen.
Symbols
You can use the softkey to switch between absolute addresses and
symbols for inputs and display in the status screen.
If a symbol is selected, the "Operand+" and "Operand-" softkeys
defined for absolute addresses are not available.
Otherwise, the above description for PLC status also applies to the
status screen.
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