Siemens SINUMERIK 840D sl Function Manual page 657

0 corresponds to option not activated or function deactivated
1 corresponds to option/activated or function activated
For more detailed information on the value ranges of 2xx programmable functions, see
References:
/PGA/ Job Planning Programming Manual; Other Functions, "STRINGIS"
2.7.2 Selection and start of part program or part-program block
Reset status
Channel status
A part program can be selected only if the relevant channel is in the Reset state.
Start command, channel status
There are two possible START commands for initiating processing of a part program or part
program block:
• The channel-specific interface DB21, ... DBX7.1 (NC Start), which is usually controlled
• With the NC instruction START, program execution in the first channel can be started
The START command can only be executed in AUTOMATIC and MDA modes. For this, the
channel concerned must be in the following state:
DB21, ... DBX35.7(channel state reset) or
DB21, ... DBX35.6 (channel state interrupted).
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
from the machine control panel key NC Start, starts program execution in the same
channel.
from the second channel, for example (for further information, see Section on Channel
synchronization).
Detailed description
2.7 Program operation mode
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