Siemens SINUMERIK 840D sl Function Manual page 572

Detailed description
2.1 Mode group
Channel gaps
Channels to which a mode group is assigned with machine data:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP
are regarded as activated.
Instead of a mode group number, the number "0" can be assigned to channels.
This has the following results:
• The nonactivated channel does not take up memory space in the control.
• Series machines with similar designs can be kept uniform during configuration. Only the
Special case:
Channel 1 must always be available. If:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP [0] = 0
is specified, the following is automatically set by the control:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP [0] = 1 (BAG 1).
Example of configurations:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP[0] = 1
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP[1] = 2
...
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP[3] = 0 ; gap
...
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP[8] = 1
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP[9] = 2
14
channels that can actually be used by the machine tool are activated (channels with
mode group number greater than 0).
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0