WAGO-I/O-SYSTEM 750
I/O Modules 363
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
13.2.5.16
Bluetooth
®
RF-Transceiver
750-644
The size of the process image for the
Bluetooth
®
module can be adjusted to 12,
24 or 48 bytes.
It consists of a control byte (input) or status byte (output); an empty byte; an
overlay able mailbox with a size of 6, 12 or 18 bytes (mode 2); and the
Bluetooth
®
process data with a size of 4 to 46 bytes.
Thus, each
Bluetooth
®
module uses between 12 and 48 bytes in the process
image. The sizes of the input and output process images are always the same.
The first byte contains the control/status byte; the second contains an empty
byte.
Process data attach to this directly when the mailbox is hidden. When the
mailbox is visible, the first 6, 12 or 18 bytes of process data are overlaid by the
mailbox data, depending on their size. Bytes in the area behind the optionally
visible mailbox contain basic process data. The internal structure of the
Bluetooth
®
process data can be found in the documentation for the
Bluetooth
®
750-644 RF Transceiver.
The mailbox and the process image sizes are set with the startup tool WAGO-
I/O-
CHECK
.
Table 413: Bluetooth
®
RF-Transceiver 750-644
Input and Output Process Image
Offset
Byte Destination
Description
High Byte
Low Byte
0
-
C0/S0
not used
Control/status
byte
1
D1
D0
Mailbox (0, 3, 6 or 9 words) and
Process data (2-23 words)
2
D3
D2
3
D5
D4
...
...
...
max.
23
D45
D44