Fb9: Mton - Operator Panel Switchover - Siemens SINUMERIK 840D sl Function Manual

P3: Basic PLC program for SINUMERIK 840D sl
13.17 Block descriptions
END_VAR
VAR_OUTPUT
END_VAR
13.17.7

FB9: MtoN - operator panel switchover

Function
The function block FB3 "PUT" is used for switching over control components (MCP/OP), which
are connected via a bus system to one or more control assemblies (NCU).
The interface between the individual control panels and the NCU (PLC) is the M : N interface
in data block DB19. FB9 uses the signals of these interfaces.
Apart from initialization, sign-of-life monitoring and error routines, the following basic functions
are also performed by the block for control unit switchover:
Tabulated overview of functions:
Basic function
HMI queuing
HMI coming
HMI going
Forced break
974
Addr2: ANY;
Addr3: ANY;
Addr4: ANY;
WVar1: WORD;
WVar2: WORD;
WVar3: WORD;
WVar4: WORD;
WVar5: WORD;
WVar6: WORD;
WVar7: WORD;
WVar8: WORD;
WVar9: WORD;
WVar10: WORD;
WVar11: WORD;
WVar12: WORD;
WVar13: WORD;
WVar14: WORD;
WVar15: WORD;
WVar16: WORD;
Error : BOOL;
Done : BOOL;
State : WORD;
Description
HMI wants to go online with an NCU
HMI is connecting to an NCU
HMI is disconnecting from an NCU
HMI must break connection with an NCU
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions