Siemens SINUMERIK 840C User Manual

Page 1012

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12.93

12 Functional Descriptions

12.22.2 Functional description

Assignment between cam pairs and axes

The cam pairs are assigned via the NC/PLC interface to specific axes as follows:

Bit No. 11 10

9

8

.

.

.

1st axis

2nd axis

3rd axis

30th axis

DB32 DW123

127

131

239

Bit 11

Bit 10

Bit 9

0

0

0

0

"Cam pairs" function inactive

0

0

0

1

Cam pair 1 active

0

0

1

0

Cam pair 2 active

0

1

0

0

Cam pair 3 active

1

0

0

0

Cam pair 4 active

Bit 8

Function

The changed cam assignments are not transferred to the NC until a 0/1 signal edge change in
the ACTIVATE CAM/AXIS ASSIGNMENT signal (DB 48 DR0.6). As an acknowledgement of
transfer, the user receives the CAM/AXIS ASSIGNMENT ACTIVATED signal (DB 48 DR1.6).
He must then reset the signal DB48 DR0.6.

© Siemens AG 1992 All Rights Reserved 6FC5197- AA50

12–237

SINUMERIK 840C (IA)

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