Lenze Drive Server Bus server S7 getting started Manuale Utente Scaricare il pdf (Pagina 57)

Busserv er S7

118 Busserver S7 DE/EN 1.0

6.6.4 OB1/FC3

Call the F3 function in OB1. All other Lenze blocks are called from this function. Then call the Siemens

FC blocks DP_SEND and / or DP_RECV, which are requi red for data exchange with the communication

processor:

CALL FC 1

CPLADDR :=W#16#100

SEND :=P#DB30.DBX 0.0 WORD 15

DONE :=M1.0

ERROR :=M1.1

STATUS :=MW2

CALL FC 2

CPLADDR :=W#16#100

RECV :=P#DB31.DBX 0.0 WORD 15

NDR :=M1.2

ERROR :=M1.3

STATUS :=MW3

DPSTATUS :=MB12

The parameter CPLADDR needs the I/O address of the PROFIBUS-CP. The address is listed in the slot

table of the Hardware Manager:

Slot I-address O-address

• Please observe that the address data in the Hardware Manager are decimal values (here: 256),

functions FC1 and FC2, however, expect hexadecimal entries (here: 100).

Specify the data block used for data exchange between communication processor and CPU.

• In this example, DB30 is used to send data and DB31 to receive data. When UDT93 (4 process

data words) is used, 16 bytes are reserved for each drive controller in the data blocks.

• Use the parameter RECV to indicate the number of drive controllers (here: 15).

Tip!

Each block can comprise a maximum of 240 bytes. Therefore a maximum of 15 drive controllers can

be addressed byoneblock. The maximumnumberdependsonthenumber of process data words used.

If more than 15 devices are to be supported, additional data blocks must be created for data exchange

and the functions FC1 and FC2 must be cyclically activated for these blocks.

More information about FC1 and FC2 can be found in the STEP7 documentation.

Show/Hide Bookmarks

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 63

Nessun commento

Lenze Drive Server Bus server S7 getting started Manuale Utente Pagina 57