Siemens SINUMERIK 840D sl Function Manual page 890

Z2: NC/PLC interface signals
19.2 Distributed systems (B3)
Online request interface
DB19 DBW100
Client_Ident
DB19 DBW102
Client_Ident
DB19 DBW104
Client_Ident
DB19 DBB106
HMI type from NETNAMES.INI
DB19 DBB107
MCP address from NETNAMES.INI
255
DB19 DB108
ONL_PERM (5)
DB19 DBB109
No. of HMI-PLC online interface, OK
(10)
MMC_LOCKED (13)
PLC_LOCKED (14)
PRIO_H (15)
Sign of life of M:N switchover
DB19 DBW110
1 ... 65535
890
ONL_REQUEST
Control unit would like to go online and use the online request interface. HMI first
writes its Client_Ident as a request.
Bit 8 .. 15: Bus type: MPI 1 or BTSS 2
Bit 0 .. 7: HMI bus address
ONL_CONFIRM.
If the online request interface is not being used by another control unit, the PLC
returns the Client identification as positive acknowledgement.
Bit 8 .. 15: Bus type: MPI 1 or BTSS 2
Bit 0 .. 7: HMI bus address
PAR_CLIENT_IDENT HMI parameter transfer to PLC
Bit 8 .. 15: Bus type: MPI 1 or BTSS 2
Bit 0 .. 7: HMI bus address
PAR_MMC_TYP HMI parameter transfer to PLC
Type properties of the control unit configured in file NETNAMES.INI. Evaluated by
the PLC when MMC is suppressed (server, main/secondary operator panel, ...),
see description of file NETNAMES.INI
PAR_MSTT_ADR HMI parameter transfer to PLC
Address of MCP to be switched over or activated/deactivated with the control unit.
Parameter from NETNAMES.INI
No MCP is assigned to control unit, no MCP will be activated/deactivated
PAR_STATUS PLC sends HMI pos./neg. online permission
PLC notifies HMI as to whether control unit can go online or not. The meaning of
the signal is dependent on PAR_Z_INFO:
PAR_Z_INFO PLC sends HMI pos./neg. online permission
PLC issues the online enabling command to the requesting control unit.
Control unit can then go online to this NCU.
Bit 0 ..3: Set
Bit 4 .. 7: No. of HMI-PLC online interface with which the control unit should connect:
First HMI-PLC online interface
Second HMI-PLC online interface
The requesting control unit cannot go online. Two control units on which uninter‐
ruptible processes are in progress are connected online to this NCU. The PLC
cannot suppress either of the two control units.
The control unit switchover disable is set in the HMI-PLC interface.
The requesting control unit cannot go online. Two control units that are both higher
priority than the requesting control unit are connected online to the NCU. The PLC
cannot suppress either of the two control units.
M_TO_N_ALIVE
Ring counter that is cyclically incremented by the PLC. Indicator for the HMI that
the M:N switchover is active and ready.
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions