1668 HEIDENHAIN Technical Manual iTNC 530 HSCI
Configuration:
Active PLC configuration file. The machine-specific configurations for the PLC
are set in this file.
Active:
Files of the integrated PLC in the process memory. These include the PLC
program, PLC error table, soft-key project file and possibly the Profibus
configuration file or configuration file for source-code programming.
At start-up, the iTNC automatically compiles the files defined in OEM.SYS.
The files only become active after they have been compiled.
Edit:
Name of the file located in RAM memory.
Free:
The available memory in the PLC partition (PLC:\) is shown in kilobytes.
Additionally, the PLC partition is checked to see if there are at least 10 MB of
memory available. If the available memory is less than 10 MB, the PLC
partition: Not enough memory error message is output.
Profibus cycle time:
Currently needed cycle time for requests and write-processes of the Profibus
system.
Interpolator cycle time:
Current interpolator cycle time.
PLC cycle time:
Current PLC cycle time, set via MP7602.
PLC utilization Maximum:
Maximum run time of the PLC program
The PLC processing time (time for a PLC cycle) is given as a percentage of the
maximum time: 100% is the equivalent of a run time of 1 ms at a cycle time
of 21 ms. Use the following formula to calculate the run time t
run
[ms] as a
function of the PLC cycle time t
PLC
[ms] and the processing time t
calc.
[%]:
If the maximum run time of the sequential program is exceeded, the iTNC
displays the blinking error message PLC: time out.
PLC utilization Currently:
The time taken for the latest PLC scan in %.
PLC code length:
Length of the compiled sequential program in KB.
t
run
t
PLC
t
calc.
⋅
21
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