Technical data

Technology functions
CPU 317T: Technology Functions
A5E00251798-03
6-219
Input parameters
Parameter Data type Start value Description
Axis INT 0 Number of the technology DB
Execute BOOL FALSE Write parameter with a positive edge at Execute
ParameterNumber INT 0 Number of the technology parameter
Index INT 1 Parameter field number (2 for data_set_2, for
example)
Value REAL 0.0
New value of the specified parameter, if it is of the type
REAL (the value is ignored otherwise.)
ValueDInt DINT 0
New value of the specified parameter, if it is of the type
DINT (the value is ignored otherwise.)
ValueDword1 DWORD 0
New value of the specified parameter, if it is of the type
DWORD and has a length of 1 DWORD (the value is
ignored otherwise.)
ValueDword2 DWORD 0
New value of the specified parameter, if it is of the type
DWORD and has a length of 2 DWORDs (the value is
ignored otherwise.)
ValueBool BOOL 0
New value of the specified parameter, if it is of the type
BOOL (the value is ignored otherwise.)
Output parameters
Parameter Data type Start value Description
Done BOOL FALSE TRUE: Change of technology parameter completed
Busy BOOL FALSE TRUE: Command is busy
Error BOOL FALSE
TRUE: Command initiation
with error.
The command is not executed; the cause is
found in the ErrorID.
FALSE: Command initiation
without error
ErrorID WORD 0
ErrorID of the Error output parameter.
Warning
Observe the range limits applying to the parameters. The valid range limits are
found in the "List of technology parameters".
When editing data record parameters, note that some of the parameters must be
identical in the data records:
• parameters changing the structure (different controller types such as PV or PID
controllers, for example)
• important activating parameters (following monitoring on/off, DSC on/off, for
example)
The system reports a configuration error if you assign illegal values to data record
parameter in runtime by means of the technology function "MC_WriteParameter."
You should therefore edit only the data record parameters you can compile as
consistent project when you configure these in S7T Config.