WAGO I/O-SYSTEM 750 Manual page 37

2.1.1.8.1.2 Process Image Mapping of the Master
Up to seven slaves can be connected to one master. The process images of
these slaves are mapped in the process image of the master.
The process image consists of a fixed number of virtual plug-ins for the Blue-
tooth
share of the process image by means of the process image mapping. One slave
can be configured for each slot, to which data can be transmitted in the area
assigned to this slot. A maximum of 6 or 7 devices can be active at one time.
The slots can occupy a length of up to 46 bytes in the master (see Figure 10).
If only one slave is connected to the master, this slave can take advantage of
the entire available size of the master.
In WAGO-I/O-CHECK (configuration mode), the user determines which and
how much data the individual slaves currently occupy in the process image of
the master.
The local process image is constructed similar to that in Figure 9. For data ex-
change between devices, the available area after byte 2 is further divided.
Figure 10: Mapping of the slaves in the master process image
Note
The size of the slave process images in the process image of the master can
be changed, not only by WAGO-I/O-CHECK, but also of the command "Se-
tRemoteSize". The operation is symmetrical for the data stream entering or
exiting the master.
After changing to communication mode, the data exchange between master
and slaves begins. The master requests data that the slave sends back over the
Bluetooth
WAGO-I/O-SYSTEM 750
I/O Modules
®
master and slaves, designated as slots. Each slot is assigned a defined
®
network.
I/O Modules • 37
Special Modules
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