Plc Main Menu - HEIDENHAIN TNC 426 PB/M Technical Manual

7.1.2 PLC Main Menu

7 – 4
After you have entered the code number (or pressed the PLC EDIT soft key)
the TNC displays the PLC main menu:
Processing time maximum:
Maximal run time of the PLC program.
The processing time of the PLC (time for one PLC scan) is given as a
percentage: 100 % is a run time of 3.5 ms.
The maximum run time of the sequential program must not exceed 300 %
(=10.5 ms). If it is higher, the TNC outputs the blinking error message PLC:
time out.
Processing time current:
The time taken for the latest PLC scan in %.
Code length:
Length of the translated sequential program in KB. Maximum value: 512 KB.
PGM in exec.mem:
Name of the last compiled PLC program (program in executive memory).
After switch-on, the TNC automatically compiles the program that was last
selected as sequential program. The PLC program is not active until it has
been compiled!
PGM in edit mem:
Name of the file in main memory.
HEIDENHAIN Technical Manual TNC 426, TNC 430