Technical data

Application and usage
CPU 317T: Technology Functions
A5E00251798-03
2-11
Technology DB
The integrated technology writes the process values of the technology object to the
assigned technology DB. This includes status and error messages output during
command execution and are also written to the technology DB.
The technology DBs of the automation system are not always retentive and write-
protected, irrespective of their set object properties.
MCDevice DB
The status of the integrated technology is mapped to the MCDevice technology
DB. This DB contains information on the maximum and average execution times of
Motion Control commands and errors in the integrated technology.
In addition, MCDevice offers you the option of indicating the status of the integrated
I/O and 32 done messages (DoneFlags) of some of the technology functions.
Define which done messages are indicated at the DoneFlag input parameter of the
technology function.
Trace DB
The TraceTool function of S7T Config is tool for the graphic analysis of system
parameters and process values.
In addition to the system parameters of the integrated technology, you can record
up to 8 variables of the S7 user program (2 x DINT values, 2 x DWORD values and
4 x REAL values.). Here, the Trace technology DB forms the interface between the
PLC and the integrated technology.
The ReadSysParameter / WriteParameter technology functions
It may prove necessary to temporarily change configuration data and system
variables of the integrated technology while the system is in RUN. The
"MC_ReadSysParameter" technology function reads the configuration data and
system variables, and "MC_WriteParameter" overwrites these. Changes at these
parameters are non-retentive.