User Manual

Table Of Contents
84 Fieldbus-specific Additions
CANopen
WAGO-I/O-SYSTEM 750
I/O Modules
PDOs 1 through 4 are, according to the standard for digital and analog mod-
ules, reserved and occupied. Additional PDOs are not necessary for digital and
analog modules. With the exception of a Bluetooth
®
module, no additional
special modules are plugged in.
The Bluetooth
®
module uses a process image of 12 bytes with a mailbox size
of 6 bytes. The mailbox is unmasked.
Therefore, the 5th and 6th PDOs are allocated to this module. The 6th PDO
contains only 4 bytes of process data. The 7th PDO and the following PDOs
are free for additional modules.
Data in the process image
Byte 1 2 3 4 5 6 7 8 9 10 11 12
Con-
tent:
C/S - MB1 MB2 MB3 MB4 MB5 MB6 D1 D2 D3 D4
C/S Control/status byte
MB1 – MB6 Mailbox data bytes 1…6
D1 – D4 Process data bytes 1…4
Entries in the object directory
Sub Bytes
Sub0 6 (number of subindices)
Sub1 8 (length of the mailbox character chain (Sub 2))
Sub2 C/S - MB1 MB2 MB3 MB4 MB5 MB6
Sub3 D1 (process data flags + slave 1/1A)
Sub4 D2 (process data slave 2/2A + slave 3/3A)
Sub5 D3 (process data slave 4/4A + slave 5/5A)
Sub6 D4 (process data slave 6/6A + slave 7/7A)
With this configuration, the Bluetooth
®
bits and process data of 7 Bluetooth
®
slaves can be transmitted.