Siemens SINUMERIK 840C User Manual

Page 612

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8 PLC Machine Data (PLC MD)

09.95

8.5 PLC MD for the operating system (system bits)

6042

DL 21

DR k+3

DL k+3

PLC MD

DB63

DW No.

Bit No.

7

6

5

4

3

2

1

0

Signal DB 31

Default value:

All bits default to 0

K = 0, 4, 8, 12, 16, 20 (1st to 6th spindle)

Bit = 0

The system software does not evaluate the bits in the corresponding interface
byte for operational messages.

Bit = 1

The system software evaluates the bits in the corresponding interface byte for
operational messages.

Notes:

1) The bit applies to all spindles.
2) If the same bit is also set for error messages (PLC MD 6034), the PLC goes into the Stop

loop.

Sample application:

DB 31 D 7.1

1 signal operational message 8029;

PLC MD 6042.1=

1

See PLC Installation Section.

6043

DR 21

DR k+3

DL k+3

PLC MD

DB63

DW No.

Bit No.

7

6

5

4

3

2

1

0

Signal DB 32

Default value:

All bits default to 0

K = 0, 4, 8, 12, ... 116 (1st to 30th axis)

Bit = 0

The system software does not evaluate the bits in the corresponding interface
byte for operational messages.

Bit = 1

The system software evaluates the bits in the corresponding interface byte for
operational messages.

Notes:

1) The bit applies to all axes.
2) If the same bit is also set for error messages (PLC MD 6035), the PLC goes into the Stop

loop.

Sample application:

DB 31 D 7.1

1 signal operational message 8029;

PLC MD 6042.1=

1

See PLC Installation Section.

8–20

© Siemens AG 1992 All Rights Reserved 6FC5197- AA50

SINUMERIK 840C (IA)

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