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A2: Various NC/PLC interface signals and functions

1.5 Data lists

Basic Functions

72 Function Manual, 09/2011, 6FC5397-0BP40-2BA0

1.5.2 System variables

1.5.3 Signals

1.5.3.1 Signals to NC

1.5.3.2 Signals from NC

Names Description

$P_FUMB Unassigned part program memory (Free User Memory Buffer)

$A_DBB[n] Data on PLC (data type BYTE)

$A_DBW[n] Data on PLC (WORD type data)

$A_DBD[n] Data on PLC (DWORD type data)

$A_DBR[n] Data on PLC (REAL type data)

Signal name SINUMERIK 840D sl SINUMERIK 828D

Keyswitch setting 0 to 3 DB10.DBX56.4-7 DB2600.DBX0.4-7

Signal name SINUMERIK 840D sl SINUMERIK 828D

Remote diagnostics active (HMI alarm is pending) DB10.DBX103.0 -

AT box ready DB10.DBX103.5 -

HMI temperature limit DB10.DBX103.6 -

HMI battery alarm DB10.DBX103.7 -

NCK--Ready DB10.DBX104.7 -

HMI2-CPU-Ready E_MMC2 Ready DB10.DBX108.1 -

HMI CPU1 Ready (HMI to MPI) DB10.DBX108.2 -

HMI1-CPU at OPI Ready DB10.DBX108.3 DB2700.DBX2.3

Drives in cyclic operation DB10.DBX108.5 DB2700.DBX2.5

Drives ready DB10.DBX108.6 DB2700.DBX2.6

NC Ready DB10.DBX108.7 DB2700.DBX2.7

NCK alarm is active DB10.DBX109.0 DB2700.DBX3.0

NCU573 heatsink temperature alarm DB10.DBX109.5 -

Air temperature alarm DB10.DBX109.6 DB2700.DBX3.6

NCK battery alarm DB10.DBX109.7 -

Siemens SINUMERIK 828D Function Manual

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