Siemens SINUMERIK 840D sl Function Manual page 24

Table of contents
13.20.2.1 Signals from operator panel...............................................................................................1077
14 P4: PLC for SINUMERIK 828D..............................................................................................................1079
14.1 Overview............................................................................................................................1079
14.1.1 PLC firmware.....................................................................................................................1079
14.1.2 PLC user interface.............................................................................................................1079
14.1.2.1 Data that are cyclically exchanged.....................................................................................1081
14.1.2.2 Alarms and messages........................................................................................................1081
14.1.2.3 Retentive data....................................................................................................................1082
14.1.2.4 Non-retentive data..............................................................................................................1082
14.1.2.5 PLC machine data..............................................................................................................1082
14.1.3 PLC key data......................................................................................................................1082
14.1.4 PLC I/O, fast onboard inputs/outputs.................................................................................1083
14.1.5 PLC Toolbox......................................................................................................................1083
14.1.5.1 Star/delta changeover........................................................................................................1083
14.2 Fast on-board inputs and outputs......................................................................................1083
14.3 Ladder viewer and ladder add-on......................................................................................1085
14.3.1 Overview............................................................................................................................1085
14.3.2 Parameterization................................................................................................................1085
14.4 PLC Programming Tool......................................................................................................1086
14.5 Data interface.....................................................................................................................1086
14.5.1 PLC-NCK interface.............................................................................................................1087
14.5.1.1 Mode signals......................................................................................................................1087
14.5.1.2 NC channel signals............................................................................................................1088
14.5.1.3 Axis and spindle signals.....................................................................................................1089
14.5.1.4 General NCK signals..........................................................................................................1090
14.5.1.5 Fast data exchange PLC-NCK...........................................................................................1090
14.5.2 PLC-HMI interface..............................................................................................................1091
14.5.2.1 Operating area numbers....................................................................................................1091
14.5.2.2 Screen numbers.................................................................................................................1092
14.6 Function interface...............................................................................................................1100
14.6.1 Read/write NC variables....................................................................................................1100
14.6.1.1 User interface.....................................................................................................................1100
14.6.1.2 Job specification.................................................................................................................1101
14.6.1.3 Job management: Start job................................................................................................1102
14.6.1.4 Job management: Waiting for end of job...........................................................................1103
14.6.1.5 Job management: Job completion.....................................................................................1103
14.6.1.6 Job management: Flow diagram........................................................................................1104
14.6.1.7 Job evaluation....................................................................................................................1105
14.6.1.8 Operable variables.............................................................................................................1107
14.6.1.9 Specifying selected NC variables.......................................................................................1113
14.6.2 Program instance services (PI services)............................................................................1115
14.6.2.1 User interface.....................................................................................................................1115
14.6.2.2 PI services..........................................................................................................................1117
14.6.3 PLC user alarms................................................................................................................1120
14.6.3.1 User interface.....................................................................................................................1120
14.6.4 PLC axis control.................................................................................................................1124
14.6.4.1 Overview............................................................................................................................1124
14.6.4.2 User interface: Preparing the NC axis as PLC axis...........................................................1125
14.6.4.3 User interface: Functionality...............................................................................................1126
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions