Siemens SINUMERIK 840D sl Function Manual page 1278

Table of contents
2.9.4 Assignment: Timers .................................................................................................................... 78
2.10 Memory requirements of basic PLC program for SINUMERIK 840D ......................................... 78
2.11 General conditions and NC-VAR_Selector ................................................................................. 82
2.11.1 Supplementary conditions........................................................................................................... 82
2.11.1.1 Programming and parameterizing tools ...................................................................................... 82
2.11.1.2 SIMATIC documentation required............................................................................................... 84
2.11.1.3 Relevant SINUMERIK documents .............................................................................................. 84
2.11.2 NC VAR selector ......................................................................................................................... 85
2.11.2.1 Overview ..................................................................................................................................... 85
2.11.2.2 Description of functions............................................................................................................... 88
2.11.2.3 Startup, installation...................................................................................................................... 97
2.12 Block descriptions ....................................................................................................................... 98
2.12.1 FB 1: RUN_UP Basic program, startup section .......................................................................... 98
2.12.2 FB 2: Read GET NC variable.................................................................................................... 107
2.12.3 FB 3: PUT write NC variables ................................................................................................... 114
2.12.4 FB 4: PI_SERV General PI services ......................................................................................... 122
2.12.4.1 General PI services................................................................................................................... 127
2.12.5 FB 5: GETGUD read GUD variable .......................................................................................... 148
2.12.6 FB 7: PI_SERV2 General PI services ....................................................................................... 154
2.12.7 FB 9: MtoN Control unit switchover .......................................................................................... 158
2.12.8 FB 10: Safety relay (SI relay) .................................................................................................... 163
2.12.9 FB 11: Brake test ...................................................................................................................... 166
2.12.10 FB 29: Signal recorder and data trigger diagnostics................................................................. 171
2.12.11 FC 2: GP_HP Basic program, cyclic section............................................................................. 176
2.12.12 FC 3: GP_PRAL Basic program, interruptdriven section .......................................................... 177
2.12.13 FC 5: GP_DIAG Basic program, diagnostic alarm, and module failure .................................... 180
2.12.14 FC 7: TM_REV Transfer block for tool change with revolver.................................................... 182
2.12.15 FC 8: TM_TRANS transfer block for tool management ............................................................ 186
2.12.16 FC 9: ASUB startup of asynchronous subprograms................................................................. 194
2.12.17 FC 10: AL_MSG error and operating messages....................................................................... 197
2.12.18 FC 12: AUXFU call interface for user with auxiliary functions .................................................. 199
2.12.19 FC 13: BHGDisp Display control for handheld unit................................................................... 200
2.12.20 FC 17: YDelta star/delta changeover........................................................................................ 204
2.12.21 FC 18: SpinCtrl spindle control ................................................................................................. 207
2.12.22 FC 19: MCP_IFM transmission of MCP signals to interface..................................................... 218
2.12.23 FC 21: transfer PLC NCK data exchange................................................................................. 225
2.12.24 FC 22: TM_DIR Direction selection for tool management ........................................................ 233
2.12.25 FC 24: MCP_IFM2 transmission of MCP signals to interface................................................... 235
2.12.26 FC 25: MCP_IFT transfer of MCP/OP signals to interface ....................................................... 239
2.12.27 FC 26: HPU_MCP transmission of HT8 signals to interface..................................................... 242
2.12.27.1 MCP selection signals to the user interface.............................................................................. 245
2.12.27.2 Checkback signals from user interface for controlling displays ................................................ 247
2.12.28 FC 19, FC 24, FC 25, FC 26 source code description.............................................................. 247
2.13 Signal/data descriptions ............................................................................................................ 249
2.13.1 Interface signals NCK/PLC, HMI/PLC, MCP/PLC .................................................................... 249
2.13.2 Decoded M signals.................................................................................................................... 250
2.13.3 G Functions ............................................................................................................................... 251
2.13.4 Message signals in DB 2........................................................................................................... 253
2.14 Programming tips with STEP 7 ................................................................................................. 253
2.14.1 General...................................................................................................................................... 253
2.14.2 Copying data ............................................................................................................................. 254
2.14.3 ANY and POINTER................................................................................................................... 254
2.14.3.1 General...................................................................................................................................... 254
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Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0