Siemens MOBY FC 56, Technical Description

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Sample Applications
5-3
FC 56
J31069-D0155-U001-A0-7618
5.2 Calling the FC 56 Cyclically (e.g., in OB 1)
The following program is an example of calling and scanning the FC 56 in an
application. The definition of the data structure is described in chapter 5.5.
Parameterization of the MOBY command was already covered in the definition of
the “MOBY DB.”
Baustein: OB1 cycle execution
Netzwerk: 1 call FC56
memory bit 1.0 is set: Start MOBY command for 1st SLG
memory bit 1.1 is set: Start MOBY command for 2nd SLG
memory bit 1.2 is set: Start init_run for 1st SLG
memory bit 1.3 is set: Start init_run for 2nd SLG
memory byte 2: OB1 used as edge triggered memory
x01:
x02:
CALL ”MOBY FH-MT”
Params_DB :=56
Params_ADDR :=0
CALL ”MOBY FH-MT”
Params_DB :=56
Params_ADDR :=300
A M 1.2
FP M 2.2
S ”MOBY DB”.SLG[1].init_run
JC x01
AN ”MOBY DB”.SLG[1].ready
JC x01
A ”MOBY DB”.SLG[1].error
JC x01
A M 1.0
FP M 2.0
S ”MOBY DB”.SLG[1].command_start
A M 1.3
FP M 2.3
S ”MOBY DB”.SLG[2].init_run
JC x02
AN “MOBY DB”.SLG[2].ready
JC x02
A ”MOBY DB”.SLG[2].error
JC x02
A M 1.1
FP M 2.1
S “MOBY DB”.SLG[2].command_start
NOP 0
// Call FC 56 for each SLG in
each cycle
// memory bit init_run for 1st SLG
// memory bit command_start for
1st SLG
// memory bit init_run for 2nd SLG
// memory bit command_start for
2nd SLG