Parameters
Parameter Declaration Type Description
READ/WRITE IN Byte 0 = Read, 1 = Write
LADDR IN WORD Logical Address INTERBUS master
IBS_ADDR IN WORD Address INTERBUS master
DATAPOINTER IN ANY Pointer to PLC data
RETVAL OUT WORD Return value (0 = OK)
This defines the transfer direction seen from the CPU. READ reads the data from the
Dual port memory of the INTERBUS master.
Enter the address (Logical Address) from where on the register of the master is mapped
in the CPU. At the start-up of the CPU, the INTERBUS master are stored in the I/O
address range of the CPU following the shown formula if no hardware configuration is
present:
Start address = 256× (slot-101)+2048
The slot numbers at the SPEED-Bus start with 101 at the left side of the CPU and raises
from the right to the left. For example the 1. slot has the address 2048, the 2. the address
2304 etc.
Address in the address range of the INTERBUS master.
Pointer to the data area of the CPU.
Value that the function returns. 0 means OK.
READ/WRITE
LADDR
IBS_ADDR
DATAPOINTER
RETVAL
VIPA SPEED7
System Blocks
System Functions > FC/SFC 254 - RW_SBUS - IBS communication
HB00 | OPL_SP7 | Operation list | en | 18-30 930
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