User Manual

Table Of Contents
42 I/O Modules
Special Modules
WAGO-I/O-SYSTEM 750
I/O Modules
Note
The offset begins with the 3rd byte of the process image (after the con-
trol/status and internal bytes).
2.1.1.8.1.3 Process Data Mapping of the Slaves
The process image of the master occupies only one slot (the first) in the proc-
ess image of the slave. This first slot uses the entire process image size. In this
case, it does not matter which cutoff size was set for slot 1 in the slave. The
configuration of the cutoff is only valid in the master and is not utilized in the
role as slave. Only those bytes that lie within the cutoff allowed by the master
for the slave are updated in this slot, however.
Bluetooth®
protocol header
Slots to be transmitted
Master's process image
Control/status byte
Byte internally used
Bluetooth® protocol
Master cutoff
process image of Slave B
Radio transmission
Process data, updated via Bluetooth®
Unassigned areas of the process image
Slave A Slave B Slave C
12, 24, 48 Byte
Slot1 Slot 2 Slot 3
12, 24, 48 Byte
Slot 1 Slot 1Slot 1
Master
Slaves
Figure 13: Process image mapping of the slave g064413e