Siemens SINUMERIK 840D sl, Function Manual

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Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
7
Brief description
1
Channel
An NC channel represents the smallest unit for manual traversing of axes and automatic
processing of part programs. At any one time, a channel will always be in a particular mode,
e.g., AUTOMATIC, MDA, or JOG. A channel can be regarded as an independent NC.
Mode group
A channel always belongs to a mode group. A mode group can also consist of several
channels. A mode group can be identified by the fact that all channels of the mode group are
always in the same mode at a particular time, e.g., AUTOMATIC, MDA, or JOG. This is
ensured through the NC internal mode logic.
A mode group can be regarded as an independent multi-channel NC.
Channel gaps
When channels are configured, placeholder channels can be provided in order to create as
uniform a configuration as possible over machines in a series. Only the channels that are
actually used are then activated.
Program test
For purposes of testing or breaking in a new part program, the following options are available
for reducing critical situations while still in the testing phase:
•
Program execution without setpoint outputs
•
Program execution in singleblock mode
•
Program execution with dry run feedrate
•
Skip part program blocks
•
Block search with or without calculation.