Siemens SINUMERIK Series

Contents
Extended Functions
8 Function Manual, 03/2013, 6FC5397-1BP40-3BA1
2 B3: Distributed systems - 840D sl only .................................................................................................... 71
2.1 Brief description .......................................................................................................................... 71
2.1.1
Several operator panels on several NCUs (T:M:N) .................................................................... 71
2.1.2
NCU link ...................................................................................................................................... 74
2.1.2.1
Link communication .................................................................................................................... 74
2.1.2.2
Link variables .............................................................................................................................. 75
2.1.2.3
Link axes ..................................................................................................................................... 75
2.1.2.4
Lead link axes ............................................................................................................................. 76
2.1.2.5
Dependencies ............................................................................................................................. 76
2.1.2.6
Application example: Rotary indexing machine .......................................................................... 77
2.2
NCU link ...................................................................................................................................... 79
2.2.1
Link communication .................................................................................................................... 79
2.2.1.1
General information..................................................................................................................... 79
2.2.1.2
Link module................................................................................................................................. 83
2.2.1.3
Parameter assignment: NC system cycles ................................................................................. 83
2.2.1.4
Parameter assignment: Link communication.............................................................................. 85
2.2.1.5
Configuration............................................................................................................................... 85
2.2.1.6
Wiring the NCUs ......................................................................................................................... 86
2.2.1.7
Activation..................................................................................................................................... 86
2.2.2
Link variables .............................................................................................................................. 87
2.2.2.1
Properties of the link variables memory...................................................................................... 88
2.2.2.2
Properties of the link variables.................................................................................................... 88
2.2.2.3
Write elements ............................................................................................................................ 89
2.2.2.4
Dynamic response during write................................................................................................... 90
2.2.2.5
System variable........................................................................................................................... 90
2.2.2.6
Synchronization of a write request.............................................................................................. 91
2.2.2.7
Example: Structure of the link variables memory ....................................................................... 91
2.2.2.8
Example: Read drive data........................................................................................................... 93
2.2.3
Link axes ..................................................................................................................................... 94
2.2.3.1
General information..................................................................................................................... 94
2.2.3.2
Name of a link axis...................................................................................................................... 96
2.2.3.3
Parameterization ......................................................................................................................... 96
2.2.3.4
Auxiliary function output for spindles .......................................................................................... 97
2.2.3.5
Supplementary conditions........................................................................................................... 98
2.2.4
Axis container............................................................................................................................ 100
2.2.4.1
General information................................................................................................................... 100
2.2.4.2
Parameterization ....................................................................................................................... 103
2.2.4.3
Programming............................................................................................................................. 110
2.2.4.4
System variable......................................................................................................................... 111
2.2.4.5
Machining with axis container (schematic) ............................................................................... 112
2.2.4.6
Behavior in different operating states ....................................................................................... 113
2.2.4.7
Behavior when withdrawing the release for axis container rotation.......................................... 113
2.2.4.8
Supplementary conditions......................................................................................................... 115
2.2.5
Lead link axes ........................................................................................................................... 118
2.2.5.1
General information................................................................................................................... 118
2.2.5.2
Parameterization ....................................................................................................................... 119
2.2.5.3
System variables to enter a leading value ................................................................................ 120
2.2.5.4
Supplementary conditions......................................................................................................... 121
2.2.5.5
Example .................................................................................................................................... 121
2.2.6
System of units within a link group............................................................................................ 121