Modes Groups And Channels; Channel Switchover - Siemens SINUMERIK 840D sl Universal Operating Manual

5.3.2

Modes groups and channels

Every channel behaves like an independent NC. A maximum of one part program can be
processed per channel.
• Control with 1channel
One mode group exists.
• Control with several channels
Channels can be grouped to form several "mode groups."
Example
Control with 4 channels, where machining is carried out in 2 channels and 2 other channels are
used to control the transport of the new workpieces.
Mode group 1 channel 1 (machining)
Channel 2 (transport)
Mode group 2 channel 3 (machining)
Channel 4 (transport)
Mode groups (MGs)
Technologically-related channels can be combined to form a mode group.
Axes and spindles of the same mode group can be controlled by one or more channels.
An operating mode group is in one of "Automatic", "JOG" or "MDI" operating modes, i.e., several
channels of an operating mode group can never assume different operating modes.
5.3.3

Channel switchover

It is possible to switch between channels when several are in use. Since individual channels may
be assigned to different mode groups, a channel switchover command is also an implicit mode
switchover command.
When a channel menu is available, all of the channels are displayed on softkeys and can be
switched over.
Changing the channel
Universal
Operating Manual, 07/2021, 6FC5398-6AP40-6BA4
Press the <CHANNEL> key.
The channel changes over to the next channel.
- OR -
If the channel menu is available, a softkey bar is displayed. The active
channel is highlighted.
Another channel can be selected by pressing one of the other softkeys.
Setting up the machine
5.3 Modes of operation
101