Nc-Specific Machine Data; Channelspecific Machine Data; Signals; Signals From Operator Panel - Siemens SINUMERIK 840D sl Function Manual

13.20.1.2

NC-specific machine data

Number Identifier: $MN_
10100 PLC_CYCLIC_TIMEOUT
14504 MAXNUM_USER_DATA_INT
14506 MAXNUM_USER_DATA_HEX
14508 MAXNUM_USER_DATA_FLOAT
14510 USER_DATA_INT
14512 USER_DATA_HEX
14514 USER_DATA_FLOAT[n]
Note
Machine data in integer/hex format is operated in the NC as DWORD. A machine data in
floating point format is managed in the NC as FLOAT (8-byte IEEE). They are stored only in
the NC/PLC interface and can be read by the PLC user program from DB20 even when the
PLC boots.
13.20.1.3

Channelspecific machine data

Number Identifier: $MC_
28150 MM_NUM_VDIVAR_ELEMENTS
13.20.2

Signals

13.20.2.1

Signals from operator panel

Signal name
Active SINUMERIK operating area
Current screen number
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
P3: Basic PLC program for SINUMERIK 840D sl
Description
Cyclic PLC monitoring time
Number of user data (INT)
Number of user data (HEX)
Number of user data (FLOAT)
User data (INT)
User data (HEX)
User data (FLOAT)
Description
Number of elements for writing PLC variables
SINUMERIK 840D sl
DB19.DB21
DB19.DBW24
13.20 Data lists
SINUMERIK 828D
DB1900.DBB1
DB1900.DBW4
1077