Siemens SINUMERIK 840Di sl Commissioning Manual page 184

PLC commissioning
6.7 Testing the PLC program
Input syntax
Both the following tables show the input syntax of the fields Operand and Format of the PLC
status display.
Table 6-2
Syntax
En.x
EBn
EWn
EDn
DBn.DBXm.x
DBn.DBBm
DBn.DBWm
DBn.DBDm
To
Mn
Tn
Cn
Table 6-3
Syntax
H
D
B
G
Monitoring
After entering the variable to be displayed in the field Operand using the syntax described
above, the actual value of the variable is displayed in the format you have set.
Controlling: Start
Use the softkey Change to switch over to the mode Control. Using the field Value the new
values for the displayed variables can now be displayed. The entered value must be within
the definition range of the set format.
Controlling: End
As long as the mode Control is active, the values entered are not imported. Only when you
quit the mode using the softkey Accept, the entered values are written to the variables and
processed in the PLC program.
184
Input field: Operand
Description
Input byte n, bit x
Input byte n
Input word n
Input double-word n
Data block n, byte m, bit x
Data block n, byte m
Data block n, word m
Data block n, double word m
Output n
Flag n
Timer n
Counter n
Input field: Format
Description
Hexadecimal
decimal
Binary
Floating point (only in conjunction with double word)
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
Manual