WAGO I/O-SYSTEM 750 Manual page 42

42 • I/O Modules
Special 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.
Master
Radio transmission
Slaves
Figure 13: Process image mapping of the slave
Control/status byte
Byte internally used
Bluetooth®
protocol header
Slot 1
Slave A
Process data, updated via Bluetooth®
Unassigned areas of the process image
Master's process image
12, 24, 48 Byte
Slots to be transmitted
Slot1 Slot 2 Slot 3
Bluetooth® protocol
Slot 1
Master cutoff
process image of Slave B
12, 24, 48 Byte
Slave B
WAGO-I/O-SYSTEM 750
Slot 1
Slave C
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I/O Modules