138 I/O Modules
WAGO-I/O-SYSTEM 750
750-306 DeviceNet
TM
Fieldbus Coupler
Manual
Version 2.0.0
LON
®
FTT module
753-648
The process image of the LON
®
FTT module consists of a control/status byte and
23 bytes of bidirectional communication data that is processed by the WAGO-
I/O-
PRO
function block “LON_01.lib”. This function block is required for the
function of the LON
®
FTT module and makes a user interface available on the
control side.
Serial interfaces with alternative data format
750-650, (and the versions /000-002, -004, -006, -009, -010, -011, -012, -013)
750-651, (and the versions /000-002, -003)
750-653, (and the versions /000-002, -007)
The process image of the version with adjustable operating mode
corresponds to the process image of the respective standard I/O module!
The operating mode of the configurable /003-000 serial interface versions can be
set with WAGO-I/O-Check. Based on the operating mode, the process image of
these I/O modules is then the same as that of the respective version.
In the input and output process image, serial interface modules using an
alternative data format occupy 4 bytes of user data: 3 data bytes and 1 additional
control/status byte. 4 bytes are occupied in the process image.
Table 137: Input/Output Process Image of the Serial Interfaces
Input/Output Process Image
Instance
Byte designation
Remark
n
C/S
Control/status byte
D0
Data bytes
n+1
D1
D2
These specialty modules represent 2 x 2 bytes and occupy 2 instances in class
(0x67) and 2 instances in class (0x68).