Siemens SINUMERIK 840Di Function Manual page 539

Mode groupspecific interface signals
The exchange of mode groupspecific signals to/from the mode group is transferred to DB11
in the user interface. In this way, the mode group can be monitored and controlled from the
PLC or NCK.
The following table lists all mode groupspecific interface signals:
Modegroup signals (PLC => NCK)
Mode group Reset
Mode group Stop axes plus spindles
Mode group Stop
Mode change
Operating mode: JOG, MDA, AUTOM.
Single block: Type A, Type B
Machine function:
REF, REPOS, TEACH IN,
Change in mode group
A change in the configuration of a mode group with respect to its assigned channels requires
a subsequent POWER ON.
The change is made using machine data:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP.
Mode group numbers must be assigned contiguously starting with 1.
Machine data
There are no mode groupspecific machine data.
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 control automatically sets
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP [0] = 1 (mode group 1).
Mode Group, Channel, Program Operation, Reset Response (K1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Digitizing
channels that can actually be used by the machine tool are activated (channels with
mode group number greater than 0).
Modegroup signals (NCK → PLC)
Mode strobe: JOG, MDA, AUTOMATIC
Machine function strobe: REF, REPOS, TEACH IN
All channels (1 to 10, max.) in Reset state
Mode group Ready
Active mode: JOG, MDA, AUTOMATIC
Active machine function: REF, REPOS, TEACH IN
var. INC, 10000 INC ......... 1 INC
Detailed Description
2.1 Mode group
2-3