K1: Mode Group, Channel, Program Operation, Reset Response; Product Brief - Siemens SINUMERIK 828D Function Manual

K1: Mode group, channel, program operation, reset
response
9.1

Product brief

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, MDI, 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, MDI, 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
The following options are available for testing or moving in position a new part program.
• 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.
Block search
The block search function enables the following program simulations for locating specific program points:
• Type 1 without calculation at contour
• Type 2 with calculation at contour
• Type 4 with calculation at block end point
• Type 5 automatic start of the selected program point with calculation of all required data from history
• Automatic start of an ASUB after a block search
Basic Functions
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