Siemens SINUMERIK 840D sl Function Manual page 57

5.2 System variables
Names
$P_FUMB
$A_DBB[n]
$A_DBW[n]
$A_DBD[n]
$A_DBR[n]
5.3 Signals
5.3.1 Signals to NC
DB number Byte.Bit
10 56.7
5.3.2 Signals from NC
DB number Byte.Bit
10 103.0
10 103.5
10 103.6
10 103.7
10 104.7
10 108.1
10 108.2
10 108.3
10 108.6
10 108.7
10 109.0
10 109.5
10 109.6
10 109.7
Basic logic functions: Various NC/PLC interface signals and functions (A2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Description
Unassigned part program memory (Free User Memory Buffer)
Data on PLC (data type BYTE)
Data on PLC (WORD type data)
Data on PLC (DWORD type data)
Data on PLC (REAL type data)
Description
Keyswitch setting 0 to 3
Description
Remote diagnostics active (HMI alarm is pending)
AT box ready
PCU temperature limit
Operator unit battery alarm
NCK CPU Ready
HMI CPU2 Ready (HMI to OPI or MPI)
HMI CPU1 Ready (HMI to MPI)
HMI CPU1 Ready (HMI to OPI, standard connection)
Drive Ready
NC Ready
NCK alarm is active
NCU573 heat-sink temperature alarm
Air temperature alarm
NCK battery alarm
Data lists
5.2 System variables
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