Program Control - Siemens SINUMERIK 840D sl Function Manual

Type A determines Stop (analogous to Stop key).
Type B determines Stop (analogous to stop at block limit).
Channel classification
In one channel (KS) in a mode group, the user should select single block (NST DB21 ... DBX0.4
(activate single block)). Single-block type A or B refers to other channels (KA) of a mode group.
Figure 9-11
Type A, IS DB11 DBX1.7=1 (single block type A)
- All channels are stopped
- All channels receive a start (Start key)
- Channel KS stops at the end of the block (due to single block)
- Channels KA receive a STOP (analogous to Stop key).
- All channels are stopped (deceleration phase of all KAs)
Type B, IS DB11 DBX1.6=1 (single block type B)
- All channels are stopped
- All channels receive a start
- Channel KS stops at the end of the block
- Channels KA receive a STOPATEND
(Comparable with IS DB21 to DBX7.2 (NC stop at the block limit).)
- All channels are stopped at a block limit (at some point in time)
9.14

Program control

Options
1. Function selection (via operator interface or PLC)
2. Activation of skip levels
3. Adapting the size of the interpolation buffer
4. Program display modes via an additional basic block display
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
Channel classification for single block in mode group 1
9.14 Program control
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