Siemens SINUMERIK 840D sl Function Manual page 1032

Detailed description
2.6 Interface structure
Bus addresses
The default bus addresses for the standard configurations are entered in the "Connecting the
MCP on the 810D" figures. In addition to the bus addresses, the implicit communication
service (global data) also requires the definition of a GD circle number.
The following should be taken into account when allocating bus addresses (node no.):
Bus addresses 840D
The two bus segments on the 840D must be examined separately:
Operator panel bus segment:
Bus station
Operator panel (OP)
Machine control
panel/keyboard interface
COM module
Programming device/PC
(e.g., for startup)
PLC bus segment:
Bus station
PLC
COM module
Programming device/PC
(e.g., for startup)
MCP interface in the PLC
The signals from the machine control panel are routed via the I/O area by default. A
distinction is made between NC and machinespecific signals. NCspecific key signals are
normally distributed by FC 19 to the various mode group, NCK, axis and spindlespecific
interfaces. The reverse applies to the status signals, which are routed to the machine control
panel interface.
Note
FC 19 must be called in the PLC user program.
Customized keys, which can be used to trigger a wide range of machine functions, must be
evaluated directly by the user program. The user program also routes the status signals to
the output area for the LEDs.
48
Perm. setting range
1 - 31
15
31
fixed
Setting range
31
Fixed depending on PLC
address
fixed
Basic logic functions: PLC Basic program powerline (P3 pl)
Standard setting
1
(setting via DIP fix)
13
0
Default Comment
setting
2
3
0
Function Manual, 11/2006, 6FC5397-0BP10-2BA0