136 Fieldbus Communication
WAGO-I/O-SYSTEM 750
750-806 Fieldbus Controller DeviceNet
TM
Manual
Version 2.0.0
Application Objects, to determine device function and/or configuration
•
“Application Object(s)”
•
“Assembly Object”
•
“Parameter Object”
Communication can be connection based exclusively. For access from the
network to the individual objects, connections between the required subscribes
must first be established and connection objects set up or activated.
The fieldbus controller supports Bit-Strobe (multicast).
•
Consumed Path is changeable (Discrete Output Point Object (0x66) or 0 is
valid)
•
Produced Path is changeable like a poll connection (if data size is more than
8 bytes, only the first 8 bytes are transmitted)
The data types used in the object model are described below.
Table 57: Object Model Data Types
Data types
USINT
Unsigned Short Integer (8 bit)
UINT
Unsigned Integer (16 bit)
USINT
Unsigned Short Integer (8 bit)
UDINT
Unsigned Double Integer (32 bit)
BOOL
Boolean, True (1) or False (0)
STRUCT
Structure of ...
ARRAY
Array of ...
Ranges of input classes may overlap, ranges of output ranges classes also.
Example:
class 160 / instance 1 and 2 (USINT) = Class 166 / instance 1 (UINT) or
class 166 / instance 1 and 2 (UINT) = Class 170 / instance 1 (UDINT).
The DeviceNet
TM
fieldbus controller (750-806) is referred to as “Device” in the
tables below.
