Siemens SINUMERIK 840Di Function Manual page 1159

Override
Source:
MCP setting
Feedrate override
Source:
MCP setting
Feedrate override
Spindle override
Channel signals
Source:
MCP keys
NC Start
NC stop
Reset
Single block
2.12.29.3 Checkback signals from user interface for controlling displays
Operating modes and machine functions
Operating modes and machine functions
Destination:
MCP output
AUTOMATIC
MDA
JOG
REPOS
REF
TEACH IN
WCS/MCS output is operated through key actuation.
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Destination:
Interface DB (Parameter ChanNo)
DB21, ... DBB4
Destination:
Interface DB (6 assigned axis DBs)
DB31, ... DBB0
DB31, ... DBB19 (parameter SpindleIFNo)
Destination:
Interface DB (Parameter ChanNo)
DB21, ... DBX7.1
DB21, ... DBX7.3
DB21, ... DBX7.7
DB21, ... DBX0.4
Source:
Interface DB (parameter ModeGroupNo)
representation for mode group 1
DB11, ... DBX6.0
DB11, ... DBX6.1
DB11, ... DBX6.2
DB11, ... DBX7.1
DB11, ... DBX7.2
DB11, ... DBX7.0
Detailed description
2.12 Block descriptions
2-247