Siemens SINUMERIK 840D sl Function Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

Time sequenceBlock searchactive (DB21, ...DBX33.4)Action blockactive (DB21, ...DBX32.3)Block searchstarting Search target 1foundBlock searchstarting Search target 2found NC Startaction blocksbeing outputLastaction blockChannel statusReset (DB21, ...DBX35.7)Last action blockactive (DB21, ...DBX32.6)Channel statusinterrupted(DB21, ... DBX35.6)Action blocksDuring a block search type 2 or type 4 (block search with calculation to ...), actions such astool (T, D), spindle (S), feedrate programming or M function outputs are collected. With NCstart to execute the action blocks, the collected actions are output to the PLC.NoteWith NC start for the action blocks, the spindle programming collected during block searchtype 2 or type 4 (block search with calculation to ...) (S value, M3 / M4 / M5 / M19, SPOS) becomesactive.The user has to ensure in the PLC user program that the tool can be operated or the spindleprogramming is reset or not output:DB31, ... DBX2.2 = 1 (spindle reset) .Supplementary conditionsContinuation mode after block search type 4If initial programming of an axis is performed incrementally to a block search type 4 (blocksearch with calculation to block end point), the programmed incremental value can be addedto the position value collected up to the search target or to the current actual value of the axis.The setting is made via:SD42444 $SC_TARGET_BLOCK_INCR_PROGThe setting data is evaluated with NC start for outputting the action blocks.K1: Mode group, channel, program operation, reset response9.7 Block search, types 1, 2, and 4:Basic FunctionsFunction Manual, 01/2015, 6FC5397-0BP40-5BA2 481