Siemens 611-D, 840C 5012, 5013

01.99 6 NC Machine Data (NC MD), NC Setting Data (NC SD)

6.6.1 General MD bits (general bits)

7 6 5 4 3 2 1 0

Bit No.

NC MD

5012

Do not

delete work-

piece name

with PLC

program

selection (as

from SW 3)

Write MD

disabled

by @

Sign change

handwheel 2

(as from

SW 6.3)

Sign change

handwheel 1

(as from

SW 6.3)

Default value: All 0

Active: In the next block

Bit 3 If the bit is set, the workpiece name is not deleted with program selection via

FB 62.

Bit 2 Bit 2 can be used to inhibit entry and modification of NC MD, PLC MD and

cycles MD using @ commands @4.. (CL800 commands).

Bit 1 Bit 1=1 Leads to a sign change of handwheel 2

Bit 0 Bit 0=1 Leads to a sign change of handwheel 1

7 6 5 4 3 2 1 0

Bit No.

NC MD

5013 Circle

program-

ming

Polar

coordinate

program-

ming

Feed not

contour-

M and S

address

extension for

spindle to PLC

Tapping

without

encoder

G63 without

feedrate

reduction

Default value: 1000 0000

Active: In the next block

Bit 7 Bit 7=1 When bit 7 is set, a circle can be programmed by specifying the radius and/or

angle.

Bit 6 Bit 6=1 Positions related to a set mid-point can be defined by programming polar

coordinates using details of radius and angles.

Example 840C (M):

Bit 4 Bit 4=0 The programmed feedrate refers to the contour.

F 1000

Bit 4 Bit 4=1 The programmed feedrate of the milling tool refers to the tool center path.

F 1000

6–99

SINUMERIK 840C (IA)