Siemens SINUMERIK 828D Function Manual page 1046

P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Explanation of formal parameters
The table below shows all formal parameters of the "Transfer" function.
Typ
Signal
e
Enable I
Funct I
S7Var I
IVAR1 I
IVAR2 I
Error O
ErrCode O
Function 1, 2: Signals synchronized actions to / from Channel
Synchronized actions can be disabled or enabled by the PLC.
The data area is stored on the user interface in DB21, ... .DBB300 ...307 (to channel) and DB21, ... .DBB308
...315 (from channel). The parameter "S7Var" is not evaluated for this function, but must be assigned an actual
parameter (see call example). The data are transferred to/from the NC as soon as FC 21 is processed.
The following signals are relevant:
Typ
Signal
e
Enable I
Funct I
S7Var I
IVAR1 I
Error O
ErrCode O
1046
Type Value range
BOOL
BYTE 1 ... 7
ANY S7 data storage area
INT 0 ...
INT 1 ...
BOOL
INT
Type Value range
BOOL
BYTE 1, 2
ANY S7 data storage area
INT 1..MaxChannel
BOOL
INT
Comment
1 = FC 21 active
1: Synchronized actions at
channel
2: Synchronized actions from
channel
3: Read data
4: Write data
5: Control signals to channel
6, 7: Control signals to axis
Depends on "Funct"
Depends on "Funct"
Depends on "Funct"
Depends on "Funct"
Comment
1 = FC 21 active
1: Synchronized actions at
channel
2: Synchronized actions from
channel
Not used
Channel number
1: "Funct" invalid
10: Channel no. invalid
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions