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HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual

Page 503

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7-42

TNC 407/TNC 415/TNC 425

3 Commands

01.98

Example for the Commands LB, LW and LD:
Via the Inputs I3 to I10, a binary coded value is to be read in and assigned to Byte B8 for further use.

Initial state:

Input I3 = 1

Input I7 = 0

Input I4 = 1

Input I8 = 1

Input I5 = 1

Input I9 = 1

Input I6 = 0

Input I10 = 0

Line Instruction

Accumulator Contents

Operand Contents

Bit

31 . . . 15

7

0

I10 I3

... x x x x x x x x x x x x x x x x x x

1

LB I3

... 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 1

01100111

7 0

2

= B8

... 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 1

01100111

Line 1:

Inputs I3 to I10 are loaded into the Word Accumulator (Bit 0 to Bit 7).

Line 2:

The Accumulator Contents are assigned to Byte 8.

The Commands LW and LD are processed in the same way except that 16 or 32 operands are used
accordingly.