Siemens SINUMERIK 840D sl Function Manual page 1219

Channel signals
Source:
MCP - keys
NC Start
NC stop
RESET
Single block
Feedrate, spindle signals
Source:
MCP - keys
Feed stop
Feed enable
Spindle stop
Spindle enable
Checkback signals from user interface for controlling displays
Operating modes and machine functions
Destination:
MCP - LED
AUTOMATIC
MDA
JOG
REPOS
REF
TEACH IN
Destination:
MCP - LED
INC 1..10000, INC Var.
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Destination:
Interface DB (parameter ChanNo)
DB21, ... DBX7.1
DB21, ... DBX7.3
DB21, ... DBX7.7
DB21, ... DBX0.4
Destination:
FC output parameters
Parameter: "FeedHold" latched, LEDs are driven
Parameter: "SpindleHold" latched, LEDs are driven
Source:
Interface DB (parameter ModeGroupNo)
DB11, ... DBX6.0
DB11, ... DBX6.1
DB11, ... DBX6.2
DB11, ... DBX7.1
DB11, ... DBX7.2
DB11, ... DBX7.0
Source:
Interface DB (parameter ModeGroupNo)
DB11, ... DBB8, Bit0 to Bit5
Detailed description
2.12 Block descriptions
235