HEIDENHAIN iTNC 530 HSCI Service Manual

11 – 134 HEIDENHAIN Service Manual iTNC 530 HSCI
11.5 Non-volatile PLC markers and words
Certain PLC markers and words are not deleted when the machine is switched off but remain
battery-buffered in the RAM of the control.
The non-volatile PLC memory area is displayed on the PLC main page.
For example: When a control is exchanged this information in the process memory of the control to
be replaced is saved on the data medium in order to load it into the process memory of the new control
later.
For test purposes the non-volatile PLC memory can be saved and re-loaded.
Saving on
data medium
8 Call the PLC mode. --> See ”Calling the PLC mode” on page 11 – 115.
8 Switch to the next soft-key row.
8 Call the TABLE function.
8 Switch to the next soft-key row.
8 Press this soft key. --> A preset memory area is displayed.
Figure: Saving non-volatile PLC markers and words
Note
The iTNC 530 HSCI automatically enters the maximum defined area of non-volatile PLC markers
and words (e.g., B0 ... B127, M0 ... M999).
You may change this area after consultation with the machine manufacturer.
Note: Here the unit B (bytes) instead of W (words) is not an error. --> A byte is the smallest subset
of a word.

HEIDENHAIN iTNC 530 HSCI Specifications

General

Brand	HEIDENHAIN
Model	iTNC 530 HSCI
Category	Control Systems
Language	English