Plc Soft Keys; Soft-Key Project File For Screen - HEIDENHAIN iTNC 530 HSCI Technical Manual

Hide thumbs Also See for iTNC 530 HSCI:

Table of Contents

8.3 PLC soft keys

You can display your own soft keys on the iTNC and on the HR 420 through

the PLC in all operating modes. You can easily define the soft-key projects

with PLCdesignNT as of version 2.3 and MenuDesign (included in the

PLCdesignNT package as of version 2.3)

When a PLC soft key is pressed the NC enters the soft-key number in W302

(horizontal soft-key row), W304 (vertical soft-key row) or W306 (handwheel

soft keys). On the rising edge of the keystroke it enters the soft-key number;

on the falling edge it enters –1. The PLC can enter –1 itself after recognizing

the soft-key number.

The vertical soft keys can only be used with a BF 150.

The PLC soft-key structure is defined in a soft-key project file using various

keywords. The number of submenus depends only on the iTNC memory.

In the OEM.SYS file, the PLC soft-key project file *.SPJ is entered through the

keyword SOFTKEYPROJECT =. After acknowledgment of Power interruption

the resource file with the same name and the extension .SYS is generated

from this file. The results of this evaluation are stored in an ASCII file with the

name <Name of the soft-key project file>.SYS.LOG.

The soft-key structure is displayed immediately. The PLC soft keys can be

influenced with Modules 9205 to 9207. Module 9204 refreshes the PLC soft

keys, which is necessary after Modules 9203 and 9207 are executed. Module

9208 determines the status information of the PLC soft keys.

In the standard setting the soft-key number is transferred to the PLC via

W302/W304 after the NODE, BACK and ACTION soft keys have been

pressed. When the key is released, –1 is confirmed. Operands can also be

coupled directly to soft keys in the project file or with Module 9206.

With Module 9205, you can also select a word address other than W302/

BLANK soft keys are not reported to the PLC.

The states of the assigned operands (STATUS markers or word) of the

ACTION, PULSE, CHECK and RADIO soft keys and the display are checked

cyclically. If these operands change, the display is adjusted accordingly.

For example, if the marker of a CHECK soft key changes from 0 to 1, the

display of the soft key is changed to "pressed."

If the value of the word address of a soft-key group, in which a group code

is saved, is changed by the PLC, then this value is checked. If the value is

valid, then the display of the group is adjusted accordingly.

HEIDENHAIN Technical Manual iTNC 530 HSCI